🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 23 (from laksa083)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa023.int.ahrefs:8124/' \
  -H 'Content-Type: text/plain' \
  -H 'X-ClickHouse-Database: crawler3' \
  -H 'Authorization: Basic YXBpOg==' \
  -d 'SELECT getAhrefsURLFromUnparsed(src_unparsed) AS found_url, ifNull(toUnixTimestamp(download_stamp), 0) AS crawl_time, ifNull(toUnixTimestamp(props_url_first_seen), 0) AS first_indexed_time, download_http_code AS http_code, src_unparsed AS src_unparsed, src_root_hash AS src_root_hash, history_drop_reason AS history_drop_reason, meta_title AS meta_title, meta_descriptions AS meta_descriptions, attrs_boilerpipe_text AS attrs_boilerpipe_text, attrs_markdown AS attrs_markdown, attrs_readable_markdown AS attrs_readable_markdown, meta_canonical AS meta_canonical FROM crawler3.page_info_local FINAL PREWHERE (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://health.stonybrookmedicine.edu/how-much-deep-sleep-do-you-need/\')), getAhrefsUnparsedNoserviceFromURL(\'https://health.stonybrookmedicine.edu/how-much-deep-sleep-do-you-need/\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/health.stonybrookmedicine.edu\/how-much-deep-sleep-do-you-need\/","crawl_time":1776277199,"first_indexed_time":1731275917,"http_code":200,"src_unparsed":"edu,stonybrookmedicine!health,\/how-much-deep-sleep-do-you-need\/ s443","src_root_hash":"15257818804647697823","history_drop_reason":null,"meta_title":"How Much Deep Sleep Do You Need? - Stony Brook Medicine Health News","meta_descriptions":["Among the various stages of sleep, deep sleep and REM sleep are particularly important for our well-being due to their restorative functions."],"attrs_boilerpipe_text":"Sleep is an essential biological process that’s a reversible state of reduced responsiveness and motor activity. Sleep \nsupports our overall health\n in many ways. Among the various stages of sleep, deep sleep and REM sleep are particularly important for our well-being due to their restorative functions. \nFor example, deep sleep (also known as slow-wave sleep) is crucial for physical recovery, immune function and brain health, while REM sleep supports many aspects of \nmental and emotional processing\n. \nDeep Sleep vs. REM Sleep: Are They the Same?\nThroughout the night, your body cycles through four sleep cycles. Each cycle is 80 to 100 minutes and consists of non-REM sleep stages and REM sleep.\nDeep sleep and REM sleep stages are both critical parts of restorative rest, but they serve different purposes in the sleep cycle.\nDeep Sleep (Non-REM Stage 3 Sleep)\nThis is the most restorative stage of sleep and crucial for physical recovery and growth. During deep sleep, the body repairs tissues, builds bone and muscle, and \nstrengthens the immune system\n.\nHere are some key facts about deep sleep:\nDeep sleep occurs after the first two stages of sleep (NREM stage 1 and stage 2)\nBrain waves are slow (delta waves) in this stage, and it’s difficult to wake someone up\nIt’s during deep sleep that the body builds up energy for the next day and carries out many restorative processes that keep the body resilient\nHormones needed for growth and appetite regulation are released during this stage\nYoung people typically spend more time in deep sleep than older people\nREM Sleep\nREM sleep, which stands for rapid eye movement sleep, is vital for cognitive functions \nsuch as memory\n, learning and emotional processing. REM sleep is also when most dreaming occurs, and it is \nthought to support\n brain development and emotional health. \nHere are some key facts about REM sleep:\nThis stage typically occurs about 90 minutes after falling asleep\nREM sleep periods get longer through the night, with the longest periods occurring in the morning hours\nEyes move rapidly from side to side behind closed eyelids, associated with vivid dreams\nBrain wave activity becomes closer to that seen in wakefulness\nIt plays a key role in memory consolidation and mood regulation\nGeneral Sleep Requirements for Adults \nFor most adults, the recommended amount of sleep is between \n7 and 8 hours\n each night.  \nAdults should aim to achieve about \n20 percent of their sleep\n in the deep stage, which equates to approximately 60-100 minutes of deep sleep during an 8-hour night. \nEnsuring a sufficient amount of deep sleep is essential for feeling rested and remaining healthy—as it helps to rejuvenate the body and supports functions ranging from metabolism to mood regulation.\nSleep Needs for Women vs. Men \nThe debate over whether women need more sleep than men is ongoing, with some research suggesting slight differences. \nAccording to the National Sleep Foundation, \nresearch indicates\n that women may require more sleep than men due to \nhormonal reasons\n, and greater mental and emotional exertion during the day, which leads to a greater need for recovery during sleep.\nWomen tend to fall asleep faster and spend more time in deep sleep than men—\nsuggesting a greater need\n for rejuvenating rest.\nHowever, the difference between men’s and women’s sleep needs is typically small (women, on average, only sleep for about 11 to 14 minutes longer than men). Sleep needs also vary from person to person based on factors like age, lifestyle, stress and health status.\nOverall, both women and men \nshould aim to get\n at least 7 hours or more of sleep most nights.\nThe Negative Impact of Sleep Deprivation\nMore than \n35 percent of U.S. adults\n report sleeping fewer than seven hours daily.\nAdults who sleep less than 7 hours per night are more likely to deal with \nvarious health issues\n due to how sleep deprivation impacts hormones, neurotransmitters (brain chemicals) and many other processes. Failing to get enough sleep, especially deep sleep, can have \nprofound implications\n for both physical and mental health.\nShort-term effects of being sleep deprived can include:\nReduced cognitive function, such as poor memory, learning and decision-making\nIrritability\nIncreased stress responsiveness\nIncreased appetite and cravings\nLong-term sleep deprivation can potentially contribute to serious health problems, such as:\nHigher risk of heart disease and diabetes\nGreater risk for weight gain or obesity\nWorsened mental health disorders, such as depression and anxiety\nTips for Optimizing Sleep for Better Health\nTo \npromote better sleep\n, try the following tips:\nGet regular exercise and sunlight exposure during the day time\nMaintain a regular sleep schedule by going to bed and waking up at about the same time every day\nCreate a bedtime routine that is relaxing, like reading or taking a bath\/shower\nEnsure your bedroom is quiet, dark and cool, with a comfortable mattress and white noise\nLimit exposure to blue light from screens before bed, including from phones, tablets, TVs and computers\nAvoid large meals, caffeine and alcohol before bedtime\nAt \nStony Brook Sleep Disorders Center\n, specialists are dedicated to diagnosing and treating sleep disorders using state-of-the-art technology and personalized care plans. Recognizing the unique needs of each patient, they provide targeted treatments to improve sleep quality and address conditions such as sleep apnea, insomnia, and more.\nSleep Medicine\nPulmonary Critical Care\nClinical Associate Professor of Medicine\nDr. Amin received his Medical degree from Cairo University, School of Medicine in 1990. He completed Internal Medicine residency at LICH, Brooklyn, NY.  He completed Pulmonary, Critical Care and Sleep Medicine training at Stony Brook University, Stony Brook, NY.He is a key faculty member at the Division of Pulmonary, Critical Care and Sleep Medicine at Stony Brook University.He has been practicing Pulmonary, Critical Care and Sleep Medicine since 2004. He serves as a Medical Director of AASM accredited Sleep Center at Northport, VAMC. He devotes 50% of his practice to Sleep Medicine and provided Sleep Medicine services to  patients living on Long Island.\nView all posts\ndeep sleep\nREM sleep\nsleep\nThis article is intended to be general and\/or educational in nature. Always consult your healthcare professional for help, diagnosis, guidance and treatment.","attrs_markdown":"[Skip to content](https:\/\/health.stonybrookmedicine.edu\/how-much-deep-sleep-do-you-need\/#content)\n\n[![Stony Brook Medicine Health News](https:\/\/health.stonybrookmedicine.edu\/wp-content\/uploads\/2023\/12\/SBM-News-Hub-Header.png)](https:\/\/health.stonybrookmedicine.edu\/)\n\n- [Home](https:\/\/health.stonybrookmedicine.edu\/)\n- [Topics](https:\/\/health.stonybrookmedicine.edu\/how-much-deep-sleep-do-you-need\/)\n  - - - [Brain & Mental Health](https:\/\/health.stonybrookmedicine.edu\/topics\/brain-and-mental-health\/)\n      - [Cancer Care & Research](https:\/\/health.stonybrookmedicine.edu\/topics\/cancer\/)\n      - [Children’s Health](https:\/\/health.stonybrookmedicine.edu\/topics\/childrens\/)\n      - [Diseases & Conditions](https:\/\/health.stonybrookmedicine.edu\/topics\/diseases-conditions\/)\n      - [Heart and Vascular Health](https:\/\/health.stonybrookmedicine.edu\/topics\/heart-and-vascular-health\/)\n    - - [Health & Wellness](https:\/\/health.stonybrookmedicine.edu\/topics\/health-wellness\/)\n      - [Orthopedics & Sports Medicine](https:\/\/health.stonybrookmedicine.edu\/topics\/orthopedic-sports-medicine\/)\n      - [Spine Care](https:\/\/health.stonybrookmedicine.edu\/topics\/spine-care\/)\n      - [Trauma](https:\/\/health.stonybrookmedicine.edu\/topics\/trauma\/)\n      - [Women's Health](https:\/\/health.stonybrookmedicine.edu\/topics\/womens-health\/)\n- [Podcasts](https:\/\/health.stonybrookmedicine.edu\/podcasts\/)\n- [Find a Doctor](https:\/\/doctors.stonybrookmedicine.edu\/search?sort=relevance%2Cnetworks%2Cavailability_density_best)\n\n[![Stony Brook Medicine Health News](https:\/\/health.stonybrookmedicine.edu\/wp-content\/uploads\/2023\/12\/SBM-News-Hub-Header.png)](https:\/\/health.stonybrookmedicine.edu\/)\n\n- [Home](https:\/\/health.stonybrookmedicine.edu\/)\n- [Topics](https:\/\/health.stonybrookmedicine.edu\/how-much-deep-sleep-do-you-need\/)\n  - - - [Brain & Mental Health](https:\/\/health.stonybrookmedicine.edu\/topics\/brain-and-mental-health\/)\n      - [Cancer Care & Research](https:\/\/health.stonybrookmedicine.edu\/topics\/cancer\/)\n      - [Children’s Health](https:\/\/health.stonybrookmedicine.edu\/topics\/childrens\/)\n      - [Diseases & Conditions](https:\/\/health.stonybrookmedicine.edu\/topics\/diseases-conditions\/)\n      - [Heart and Vascular Health](https:\/\/health.stonybrookmedicine.edu\/topics\/heart-and-vascular-health\/)\n    - - [Health & Wellness](https:\/\/health.stonybrookmedicine.edu\/topics\/health-wellness\/)\n      - [Orthopedics & Sports Medicine](https:\/\/health.stonybrookmedicine.edu\/topics\/orthopedic-sports-medicine\/)\n      - [Spine Care](https:\/\/health.stonybrookmedicine.edu\/topics\/spine-care\/)\n      - [Trauma](https:\/\/health.stonybrookmedicine.edu\/topics\/trauma\/)\n      - [Women's Health](https:\/\/health.stonybrookmedicine.edu\/topics\/womens-health\/)\n- [Podcasts](https:\/\/health.stonybrookmedicine.edu\/podcasts\/)\n- [Find a Doctor](https:\/\/doctors.stonybrookmedicine.edu\/search?sort=relevance%2Cnetworks%2Cavailability_density_best)\n\n[![Stony Brook Medicine Health News](https:\/\/health.stonybrookmedicine.edu\/wp-content\/uploads\/2023\/12\/SBM-News-Hub-Header1x.png)](https:\/\/health.stonybrookmedicine.edu\/)\n\n![A woman deep sleeping peacefully in her bed.](https:\/\/health.stonybrookmedicine.edu\/wp-content\/uploads\/2024\/11\/How-Much-Deep-Sleep.jpg)\n\n[Facebook](https:\/\/health.stonybrookmedicine.edu\/how-much-deep-sleep-do-you-need\/)[X](https:\/\/health.stonybrookmedicine.edu\/how-much-deep-sleep-do-you-need\/)[Email](mailto:?subject=How%20Much%20Deep%20Sleep%20Do%20You%20Need%3F&body=https%3A%2F%2Fhealth.stonybrookmedicine.edu%2Fhow-much-deep-sleep-do-you-need%2F)[LinkedIn](https:\/\/health.stonybrookmedicine.edu\/how-much-deep-sleep-do-you-need\/)\n\n- [Brain & Mental Health](https:\/\/health.stonybrookmedicine.edu\/topics\/brain-and-mental-health\/)\n- [Health & Wellness](https:\/\/health.stonybrookmedicine.edu\/topics\/health-wellness\/)\n# How Much Deep Sleep Do You Need?\nNovember 6, 2024\n\n5 min read\n\nSleep is an essential biological process that’s a reversible state of reduced responsiveness and motor activity. Sleep [supports our overall health](https:\/\/pubmed.ncbi.nlm.nih.gov\/19654581\/) in many ways. Among the various stages of sleep, deep sleep and REM sleep are particularly important for our well-being due to their restorative functions.\n\nFor example, deep sleep (also known as slow-wave sleep) is crucial for physical recovery, immune function and brain health, while REM sleep supports many aspects of [mental and emotional processing](https:\/\/pubmed.ncbi.nlm.nih.gov\/23923204\/).\n\n## Deep Sleep vs. REM Sleep: Are They the Same?\nThroughout the night, your body cycles through four sleep cycles. Each cycle is 80 to 100 minutes and consists of non-REM sleep stages and REM sleep.\n\nDeep sleep and REM sleep stages are both critical parts of restorative rest, but they serve different purposes in the sleep cycle.\n\n### Deep Sleep (Non-REM Stage 3 Sleep)\nThis is the most restorative stage of sleep and crucial for physical recovery and growth. During deep sleep, the body repairs tissues, builds bone and muscle, and [strengthens the immune system](https:\/\/pubmed.ncbi.nlm.nih.gov\/22071480\/).\n\n**Here are some key facts about deep sleep:**\n\n- Deep sleep occurs after the first two stages of sleep (NREM stage 1 and stage 2)\n- Brain waves are slow (delta waves) in this stage, and it’s difficult to wake someone up\n- It’s during deep sleep that the body builds up energy for the next day and carries out many restorative processes that keep the body resilient\n- Hormones needed for growth and appetite regulation are released during this stage\n- Young people typically spend more time in deep sleep than older people\n### REM Sleep\nREM sleep, which stands for rapid eye movement sleep, is vital for cognitive functions [such as memory](https:\/\/pubmed.ncbi.nlm.nih.gov\/28544929\/), learning and emotional processing. REM sleep is also when most dreaming occurs, and it is [thought to support](https:\/\/pubmed.ncbi.nlm.nih.gov\/29161567\/) brain development and emotional health.\n\n**Here are some key facts about REM sleep:**\n\n- This stage typically occurs about 90 minutes after falling asleep\n- REM sleep periods get longer through the night, with the longest periods occurring in the morning hours\n- Eyes move rapidly from side to side behind closed eyelids, associated with vivid dreams\n- Brain wave activity becomes closer to that seen in wakefulness\n- It plays a key role in memory consolidation and mood regulation\n## General Sleep Requirements for Adults\nFor most adults, the recommended amount of sleep is between [7 and 8 hours](https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC6045782\/) each night.\n\nAdults should aim to achieve about [20 percent of their sleep](https:\/\/www.sleepfoundation.org\/stages-of-sleep\/deep-sleep) in the deep stage, which equates to approximately 60-100 minutes of deep sleep during an 8-hour night.\n\nEnsuring a sufficient amount of deep sleep is essential for feeling rested and remaining healthy—as it helps to rejuvenate the body and supports functions ranging from metabolism to mood regulation.\n\n## Sleep Needs for Women vs. Men\nThe debate over whether women need more sleep than men is ongoing, with some research suggesting slight differences.\n\nAccording to the National Sleep Foundation, [research indicates](https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC6045782\/) that women may require more sleep than men due to [hormonal reasons](https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC6168103\/), and greater mental and emotional exertion during the day, which leads to a greater need for recovery during sleep.\n\nWomen tend to fall asleep faster and spend more time in deep sleep than men—[suggesting a greater need](https:\/\/pubmed.ncbi.nlm.nih.gov\/33519372\/) for rejuvenating rest.\n\nHowever, the difference between men’s and women’s sleep needs is typically small (women, on average, only sleep for about 11 to 14 minutes longer than men). Sleep needs also vary from person to person based on factors like age, lifestyle, stress and health status.\n\nOverall, both women and men [should aim to get](https:\/\/pubmed.ncbi.nlm.nih.gov\/29073412\/) at least 7 hours or more of sleep most nights.\n\n## The Negative Impact of Sleep Deprivation\nMore than [35 percent of U.S. adults](https:\/\/www.ncoa.org\/adviser\/sleep\/how-much-sleep\/) report sleeping fewer than seven hours daily.\n\nAdults who sleep less than 7 hours per night are more likely to deal with [various health issues](https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC4434546\/) due to how sleep deprivation impacts hormones, neurotransmitters (brain chemicals) and many other processes. Failing to get enough sleep, especially deep sleep, can have [profound implications](https:\/\/pubmed.ncbi.nlm.nih.gov\/32951993\/) for both physical and mental health.\n\n**Short-term effects of being sleep deprived can include:**\n\n- Reduced cognitive function, such as poor memory, learning and decision-making\n- Irritability\n- Increased stress responsiveness\n- Increased appetite and cravings\n\n**Long-term sleep deprivation can potentially contribute to serious health problems, such as:**\n\n- Higher risk of heart disease and diabetes\n- Greater risk for weight gain or obesity\n- Worsened mental health disorders, such as depression and anxiety\n### Tips for Optimizing Sleep for Better Health\n**To** [**promote better sleep**](https:\/\/www.sleepfoundation.org\/how-sleep-works\/how-much-sleep-do-we-really-need)**, try the following tips:**\n\n- Get regular exercise and sunlight exposure during the day time\n- Maintain a regular sleep schedule by going to bed and waking up at about the same time every day\n- Create a bedtime routine that is relaxing, like reading or taking a bath\/shower\n- Ensure your bedroom is quiet, dark and cool, with a comfortable mattress and white noise\n- Limit exposure to blue light from screens before bed, including from phones, tablets, TVs and computers\n- Avoid large meals, caffeine and alcohol before bedtime\n\n*At* [*Stony Brook Sleep Disorders Center*](https:\/\/www.stonybrookmedicine.edu\/patientcare\/pulmonary\/services\/specialty_centers\/sleep_disorders_center)*, specialists are dedicated to diagnosing and treating sleep disorders using state-of-the-art technology and personalized care plans. Recognizing the unique needs of each patient, they provide targeted treatments to improve sleep quality and address conditions such as sleep apnea, insomnia, and more.*\n\n- ![Mohammad M Amin, MBBCH](https:\/\/health.stonybrookmedicine.edu\/wp-content\/uploads\/2024\/11\/2882.jpg)\n  [Mohammad M Amin, MBBCH](https:\/\/health.stonybrookmedicine.edu\/author\/mohammad-m-amin-mbbch\/ \"Mohammad M Amin, MBBCH\")\n  \n  Sleep Medicine\n  \n  Pulmonary Critical Care\n  \n  Clinical Associate Professor of Medicine\n  \n  Dr. Amin received his Medical degree from Cairo University, School of Medicine in 1990. He completed Internal Medicine residency at LICH, Brooklyn, NY. He completed Pulmonary, Critical Care and Sleep Medicine training at Stony Brook University, Stony Brook, NY.He is a key faculty member at the Division of Pulmonary, Critical Care and Sleep Medicine at Stony Brook University.He has been practicing Pulmonary, Critical Care and Sleep Medicine since 2004. He serves as a Medical Director of AASM accredited Sleep Center at Northport, VAMC. He devotes 50% of his practice to Sleep Medicine and provided Sleep Medicine services to patients living on Long Island.\n  \n  [View all posts](https:\/\/health.stonybrookmedicine.edu\/author\/mohammad-m-amin-mbbch\/ \"View all posts\")\n\n- [deep sleep](https:\/\/health.stonybrookmedicine.edu\/tag\/deep-sleep\/)\n- [REM sleep](https:\/\/health.stonybrookmedicine.edu\/tag\/rem-sleep\/)\n- [sleep](https:\/\/health.stonybrookmedicine.edu\/tag\/sleep\/)\n\n***This article is intended to be general and\/or educational in nature. Always consult your healthcare professional for help, diagnosis, guidance and treatment.***\n\n#### Related Stories\n[![A young woman standing in her bathroom, covering her eyes because she's feeling dizzy.](https:\/\/health.stonybrookmedicine.edu\/wp-content\/uploads\/2026\/04\/Vasovagal-Syncope_Cropped-385x300.jpg)](https:\/\/health.stonybrookmedicine.edu\/vasovagal-syncope-triggers-early-symptoms-and-prevention\/ \"Vasovagal Syncope: Understanding Triggers, Early Symptoms and Prevention\")\n\n[Diseases & Conditions](https:\/\/health.stonybrookmedicine.edu\/topics\/diseases-conditions\/)[Health & Wellness](https:\/\/health.stonybrookmedicine.edu\/topics\/health-wellness\/)\n\n## [Vasovagal Syncope: Understanding Triggers, Early Symptoms and...](https:\/\/health.stonybrookmedicine.edu\/vasovagal-syncope-triggers-early-symptoms-and-prevention\/)\n\nApril 10, 2026\n\n7 min read\n\n[![Living Kidney Donor Requirements](https:\/\/health.stonybrookmedicine.edu\/wp-content\/uploads\/2024\/07\/Livingkidneydonor-385x300.jpg)](https:\/\/health.stonybrookmedicine.edu\/living-kidney-donor-requirements-are-you-a-match\/ \"Living Kidney Donor Requirements: Are You a Match?\")\n\n[Diseases & Conditions](https:\/\/health.stonybrookmedicine.edu\/topics\/diseases-conditions\/)[Health & Wellness](https:\/\/health.stonybrookmedicine.edu\/topics\/health-wellness\/)\n\n## [Living Kidney Donor Requirements: Are You a Match?](https:\/\/health.stonybrookmedicine.edu\/living-kidney-donor-requirements-are-you-a-match\/)\nAccording to the National...\n\nApril 6, 2026\n\n5 min read\n\n[![Three experts from Stony Brook Children's Hospital in the podcast studio holding coffee mugs.](https:\/\/health.stonybrookmedicine.edu\/wp-content\/uploads\/2026\/03\/Healthcast-CARE-385x300.jpg)](https:\/\/health.stonybrookmedicine.edu\/healthcast-episode-11-care-initiative\/ \"Healthcast Episode 11: CARE Initiative\")\n\n[Behavioral Health](https:\/\/health.stonybrookmedicine.edu\/topics\/behavioral-health\/)[Children’s Health](https:\/\/health.stonybrookmedicine.edu\/topics\/childrens\/)[Health & Wellness](https:\/\/health.stonybrookmedicine.edu\/topics\/health-wellness\/)\n\n## [Healthcast Episode 11: CARE Initiative...](https:\/\/health.stonybrookmedicine.edu\/healthcast-episode-11-care-initiative\/)\n\nMarch 31, 2026\n\n34 min read\n\n- #### Stony Brook Sleep Disorders Center\n  Give us a call [(](<tel: (631)-444-6270>)[631\\) 444-2599](<tel:(631) 444-2599>)\n  [Learn more](https:\/\/neuro.stonybrookmedicine.edu\/centers\/sleepdisorders)\n\n#### Topics\n- [Behavioral Health](https:\/\/health.stonybrookmedicine.edu\/topics\/behavioral-health\/)\n- [Brain & Mental Health](https:\/\/health.stonybrookmedicine.edu\/topics\/brain-and-mental-health\/)\n- [Cancer Care & Research](https:\/\/health.stonybrookmedicine.edu\/topics\/cancer\/)\n- [Children’s Health](https:\/\/health.stonybrookmedicine.edu\/topics\/childrens\/)\n- [Dermatology](https:\/\/health.stonybrookmedicine.edu\/topics\/dermatology\/)\n- [Diseases & Conditions](https:\/\/health.stonybrookmedicine.edu\/topics\/diseases-conditions\/)\n- [Gastroenterology](https:\/\/health.stonybrookmedicine.edu\/topics\/gastroenterology\/)\n- [Health & Wellness](https:\/\/health.stonybrookmedicine.edu\/topics\/health-wellness\/)\n- [Heart and Vascular Health](https:\/\/health.stonybrookmedicine.edu\/topics\/heart-and-vascular-health\/)\n- [Infectious Diseases](https:\/\/health.stonybrookmedicine.edu\/topics\/infectious-diseases\/)\n- [Leadership](https:\/\/health.stonybrookmedicine.edu\/topics\/leadership\/)\n- [Mental Health](https:\/\/health.stonybrookmedicine.edu\/topics\/mental-health\/)\n- [Nephrology](https:\/\/health.stonybrookmedicine.edu\/topics\/nephrology\/)\n- [Nutrition and Weight Loss](https:\/\/health.stonybrookmedicine.edu\/topics\/nutrition-and-weight-loss\/)\n- [Orthopedics & Sports Medicine](https:\/\/health.stonybrookmedicine.edu\/topics\/orthopedic-sports-medicine\/)\n- [Pain Management](https:\/\/health.stonybrookmedicine.edu\/topics\/pain-management\/)\n- [Spine Care](https:\/\/health.stonybrookmedicine.edu\/topics\/spine-care\/)\n- [Trauma](https:\/\/health.stonybrookmedicine.edu\/topics\/trauma\/)\n- [Urology](https:\/\/health.stonybrookmedicine.edu\/topics\/urology\/)\n- [Women's Health](https:\/\/health.stonybrookmedicine.edu\/topics\/womens-health\/)\n\n#### Latest Stories\n[![A young girl sleeping in her bed, wearing a green shirt with white bed sheets.](https:\/\/health.stonybrookmedicine.edu\/wp-content\/uploads\/2026\/04\/Health-Yeah-Kids-Sleep_Cropped-80x60.jpg)](https:\/\/health.stonybrookmedicine.edu\/health-yeah-episode-29-when-kids-dont-sleep-what-parents-should-know\/ \"HEALTH Yeah! Episode 29: When Kids Don’t Sleep: What Parents Should Know\")\n\n###### [HEALTH Yeah! Episode 29: When Kids Don’t Sleep: What Parents Should Know](https:\/\/health.stonybrookmedicine.edu\/health-yeah-episode-29-when-kids-dont-sleep-what-parents-should-know\/)\nApril 15, 2026\n\n[![A football player wearing orange being tackled by a player wearing white, both about to hit the ground.](https:\/\/health.stonybrookmedicine.edu\/wp-content\/uploads\/2026\/04\/Traumatic-Brain-Injury-in-Sports-80x60.jpg)](https:\/\/health.stonybrookmedicine.edu\/traumatic-brain-injury-in-sports-symptoms-risks-and-prevention\/ \"Traumatic Brain Injury in Sports: Symptoms, Risks and When to Seek Medical Care\")\n\n###### [Traumatic Brain Injury in Sports: Symptoms, Risks and When to Seek Medical Care](https:\/\/health.stonybrookmedicine.edu\/traumatic-brain-injury-in-sports-symptoms-risks-and-prevention\/)\nApril 13, 2026\n\n[![A young woman standing in her bathroom, covering her eyes because she's feeling dizzy.](https:\/\/health.stonybrookmedicine.edu\/wp-content\/uploads\/2026\/04\/Vasovagal-Syncope_Cropped-80x60.jpg)](https:\/\/health.stonybrookmedicine.edu\/vasovagal-syncope-triggers-early-symptoms-and-prevention\/ \"Vasovagal Syncope: Understanding Triggers, Early Symptoms and Prevention\")\n\n###### [Vasovagal Syncope: Understanding Triggers, Early Symptoms and Prevention](https:\/\/health.stonybrookmedicine.edu\/vasovagal-syncope-triggers-early-symptoms-and-prevention\/)\nApril 10, 2026\n\n[![A father with two kids walking through a wooded area during the fall season.](https:\/\/health.stonybrookmedicine.edu\/wp-content\/uploads\/2026\/04\/Anaplasmosis_Cropped-80x60.jpg)](https:\/\/health.stonybrookmedicine.edu\/tick-diseases-anaplasmosis\/ \"Tick Diseases: Anaplasmosis Symptoms, Diagnosis & Treatment\")\n\n###### [Tick Diseases: Anaplasmosis Symptoms, Diagnosis & Treatment](https:\/\/health.stonybrookmedicine.edu\/tick-diseases-anaplasmosis\/)\nApril 8, 2026\n\n[![Living Kidney Donor Requirements](https:\/\/health.stonybrookmedicine.edu\/wp-content\/uploads\/2024\/07\/Livingkidneydonor-80x60.jpg)](https:\/\/health.stonybrookmedicine.edu\/living-kidney-donor-requirements-are-you-a-match\/ \"Living Kidney Donor Requirements: Are You a Match?\")\n\n###### [Living Kidney Donor Requirements: Are You a Match?](https:\/\/health.stonybrookmedicine.edu\/living-kidney-donor-requirements-are-you-a-match\/)\nApril 6, 2026\n\n[![A young girl sleeping in her bed, wearing a green shirt with white bed sheets.](https:\/\/health.stonybrookmedicine.edu\/wp-content\/uploads\/2026\/04\/Health-Yeah-Kids-Sleep_Cropped-80x60.jpg)](https:\/\/health.stonybrookmedicine.edu\/health-yeah-episode-29-when-kids-dont-sleep-what-parents-should-know\/ \"HEALTH Yeah! Episode 29: When Kids Don’t Sleep: What Parents Should Know\")\n\n###### [HEALTH Yeah! Episode 29: When Kids Don’t Sleep: What Parents Should Know](https:\/\/health.stonybrookmedicine.edu\/health-yeah-episode-29-when-kids-dont-sleep-what-parents-should-know\/)\nApril 15, 2026\n\n[![A football player wearing orange being tackled by a player wearing white, both about to hit the ground.](https:\/\/health.stonybrookmedicine.edu\/wp-content\/uploads\/2026\/04\/Traumatic-Brain-Injury-in-Sports-80x60.jpg)](https:\/\/health.stonybrookmedicine.edu\/traumatic-brain-injury-in-sports-symptoms-risks-and-prevention\/ \"Traumatic Brain Injury in Sports: Symptoms, Risks and When to Seek Medical Care\")\n\n###### [Traumatic Brain Injury in Sports: Symptoms, Risks and When to Seek Medical Care](https:\/\/health.stonybrookmedicine.edu\/traumatic-brain-injury-in-sports-symptoms-risks-and-prevention\/)\nApril 13, 2026\n\n[![A young woman standing in her bathroom, covering her eyes because she's feeling dizzy.](https:\/\/health.stonybrookmedicine.edu\/wp-content\/uploads\/2026\/04\/Vasovagal-Syncope_Cropped-80x60.jpg)](https:\/\/health.stonybrookmedicine.edu\/vasovagal-syncope-triggers-early-symptoms-and-prevention\/ \"Vasovagal Syncope: Understanding Triggers, Early Symptoms and Prevention\")\n\n###### [Vasovagal Syncope: Understanding Triggers, Early Symptoms and Prevention](https:\/\/health.stonybrookmedicine.edu\/vasovagal-syncope-triggers-early-symptoms-and-prevention\/)\nApril 10, 2026\n\n[![A father with two kids walking through a wooded area during the fall season.](https:\/\/health.stonybrookmedicine.edu\/wp-content\/uploads\/2026\/04\/Anaplasmosis_Cropped-80x60.jpg)](https:\/\/health.stonybrookmedicine.edu\/tick-diseases-anaplasmosis\/ \"Tick Diseases: Anaplasmosis Symptoms, Diagnosis & Treatment\")\n\n###### [Tick Diseases: Anaplasmosis Symptoms, Diagnosis & Treatment](https:\/\/health.stonybrookmedicine.edu\/tick-diseases-anaplasmosis\/)\nApril 8, 2026\n\n[![Living Kidney Donor Requirements](https:\/\/health.stonybrookmedicine.edu\/wp-content\/uploads\/2024\/07\/Livingkidneydonor-80x60.jpg)](https:\/\/health.stonybrookmedicine.edu\/living-kidney-donor-requirements-are-you-a-match\/ \"Living Kidney Donor Requirements: Are You a Match?\")\n\n###### [Living Kidney Donor Requirements: Are You a Match?](https:\/\/health.stonybrookmedicine.edu\/living-kidney-donor-requirements-are-you-a-match\/)\nApril 6, 2026\n\n[![A young girl sleeping in her bed, wearing a green shirt with white bed sheets.](https:\/\/health.stonybrookmedicine.edu\/wp-content\/uploads\/2026\/04\/Health-Yeah-Kids-Sleep_Cropped-80x60.jpg)](https:\/\/health.stonybrookmedicine.edu\/health-yeah-episode-29-when-kids-dont-sleep-what-parents-should-know\/ \"HEALTH Yeah! Episode 29: When Kids Don’t Sleep: What Parents Should Know\")\n\n###### [HEALTH Yeah! Episode 29: When Kids Don’t Sleep: What Parents Should Know](https:\/\/health.stonybrookmedicine.edu\/health-yeah-episode-29-when-kids-dont-sleep-what-parents-should-know\/)\nApril 15, 2026\n\n[![A football player wearing orange being tackled by a player wearing white, both about to hit the ground.](https:\/\/health.stonybrookmedicine.edu\/wp-content\/uploads\/2026\/04\/Traumatic-Brain-Injury-in-Sports-80x60.jpg)](https:\/\/health.stonybrookmedicine.edu\/traumatic-brain-injury-in-sports-symptoms-risks-and-prevention\/ \"Traumatic Brain Injury in Sports: Symptoms, Risks and When to Seek Medical Care\")\n\n###### [Traumatic Brain Injury in Sports: Symptoms, Risks and When to Seek Medical Care](https:\/\/health.stonybrookmedicine.edu\/traumatic-brain-injury-in-sports-symptoms-risks-and-prevention\/)\nApril 13, 2026\n\n[![A young woman standing in her bathroom, covering her eyes because she's feeling dizzy.](https:\/\/health.stonybrookmedicine.edu\/wp-content\/uploads\/2026\/04\/Vasovagal-Syncope_Cropped-80x60.jpg)](https:\/\/health.stonybrookmedicine.edu\/vasovagal-syncope-triggers-early-symptoms-and-prevention\/ \"Vasovagal Syncope: Understanding Triggers, Early Symptoms and Prevention\")\n\n###### [Vasovagal Syncope: Understanding Triggers, Early Symptoms and Prevention](https:\/\/health.stonybrookmedicine.edu\/vasovagal-syncope-triggers-early-symptoms-and-prevention\/)\nApril 10, 2026\n\n[![A father with two kids walking through a wooded area during the fall season.](https:\/\/health.stonybrookmedicine.edu\/wp-content\/uploads\/2026\/04\/Anaplasmosis_Cropped-80x60.jpg)](https:\/\/health.stonybrookmedicine.edu\/tick-diseases-anaplasmosis\/ \"Tick Diseases: Anaplasmosis Symptoms, Diagnosis & Treatment\")\n\n###### [Tick Diseases: Anaplasmosis Symptoms, Diagnosis & Treatment](https:\/\/health.stonybrookmedicine.edu\/tick-diseases-anaplasmosis\/)\nApril 8, 2026\n\n[![Living Kidney Donor Requirements](https:\/\/health.stonybrookmedicine.edu\/wp-content\/uploads\/2024\/07\/Livingkidneydonor-80x60.jpg)](https:\/\/health.stonybrookmedicine.edu\/living-kidney-donor-requirements-are-you-a-match\/ \"Living Kidney Donor Requirements: Are You a Match?\")\n\n###### [Living Kidney Donor Requirements: Are You a Match?](https:\/\/health.stonybrookmedicine.edu\/living-kidney-donor-requirements-are-you-a-match\/)\nApril 6, 2026\n\n![Stony Brook Medicine Logo](https:\/\/www.stonybrookmedicine.edu\/sites\/default\/files\/webfiles\/SBM-horz-logo-white.png)\n\n- [Home](https:\/\/health.stonybrookmedicine.edu\/)\n- [Topics](https:\/\/health.stonybrookmedicine.edu\/how-much-deep-sleep-do-you-need\/)\n  - [Brain & Mental Health](https:\/\/health.stonybrookmedicine.edu\/topics\/brain-and-mental-health\/)\n  - [Cancer Care & Research](https:\/\/health.stonybrookmedicine.edu\/topics\/cancer\/)\n  - [Children’s Health](https:\/\/health.stonybrookmedicine.edu\/topics\/childrens\/)\n  - [Diseases & Conditions](https:\/\/health.stonybrookmedicine.edu\/topics\/diseases-conditions\/)\n  - [Health & Wellness](https:\/\/health.stonybrookmedicine.edu\/topics\/health-wellness\/)\n  - [Heart and Vascular Health](https:\/\/health.stonybrookmedicine.edu\/topics\/heart-and-vascular-health\/)\n  - [Orthopedics & Sports Medicine](https:\/\/health.stonybrookmedicine.edu\/topics\/orthopedic-sports-medicine\/)\n  - [Spine Care](https:\/\/health.stonybrookmedicine.edu\/topics\/spine-care\/)\n  - [Trauma](https:\/\/health.stonybrookmedicine.edu\/topics\/trauma\/)\n  - [Women’s Health](https:\/\/health.stonybrookmedicine.edu\/topics\/womens-health\/)\n- [Podcasts](https:\/\/health.stonybrookmedicine.edu\/podcasts\/)\n- [Find a Doctor](https:\/\/doctors.stonybrookmedicine.edu\/search?sort=relevance%2Cnetworks%2Cavailability_density_best)\n\n#### Connect with SBM\n- [facebook](https:\/\/www.facebook.com\/stonybrookmedicine \"Facebook\")\n- [twitter](https:\/\/twitter.com\/StonyBrookMed \"X (ex Twitter)\")\n- [youtube](http:\/\/www.youtube.com\/user\/StonyBrookMedicine \"YouTube\")\n- [instagram](https:\/\/instagram.com\/stonybrookmedicine \"Instagram\")\n- [linkedin](https:\/\/www.linkedin.com\/company\/stony-brook-medicine \"Linkedin\")\n\nCopyright © 2026. Stony Brook Medicine\n\n- [Home](https:\/\/health.stonybrookmedicine.edu\/)\n- [Topics](https:\/\/health.stonybrookmedicine.edu\/how-much-deep-sleep-do-you-need\/)\n  - - - [Brain & Mental Health](https:\/\/health.stonybrookmedicine.edu\/topics\/brain-and-mental-health\/)\n      - [Cancer Care & Research](https:\/\/health.stonybrookmedicine.edu\/topics\/cancer\/)\n      - [Children’s Health](https:\/\/health.stonybrookmedicine.edu\/topics\/childrens\/)\n      - [Diseases & Conditions](https:\/\/health.stonybrookmedicine.edu\/topics\/diseases-conditions\/)\n      - [Heart and Vascular Health](https:\/\/health.stonybrookmedicine.edu\/topics\/heart-and-vascular-health\/)\n    - - [Health & Wellness](https:\/\/health.stonybrookmedicine.edu\/topics\/health-wellness\/)\n      - [Orthopedics & Sports Medicine](https:\/\/health.stonybrookmedicine.edu\/topics\/orthopedic-sports-medicine\/)\n      - [Spine Care](https:\/\/health.stonybrookmedicine.edu\/topics\/spine-care\/)\n      - [Trauma](https:\/\/health.stonybrookmedicine.edu\/topics\/trauma\/)\n      - [Women's Health](https:\/\/health.stonybrookmedicine.edu\/topics\/womens-health\/)\n- [Podcasts](https:\/\/health.stonybrookmedicine.edu\/podcasts\/)\n- [Find a Doctor](https:\/\/doctors.stonybrookmedicine.edu\/search?sort=relevance%2Cnetworks%2Cavailability_density_best)\n#### Search Stony Medicine Health News\n#### Topics\n- [Behavioral Health](https:\/\/health.stonybrookmedicine.edu\/topics\/behavioral-health\/)\n- [Brain & Mental Health](https:\/\/health.stonybrookmedicine.edu\/topics\/brain-and-mental-health\/)\n- [Cancer Care & Research](https:\/\/health.stonybrookmedicine.edu\/topics\/cancer\/)\n- [Children’s Health](https:\/\/health.stonybrookmedicine.edu\/topics\/childrens\/)\n- [Dermatology](https:\/\/health.stonybrookmedicine.edu\/topics\/dermatology\/)\n- [Diseases & Conditions](https:\/\/health.stonybrookmedicine.edu\/topics\/diseases-conditions\/)\n- [Gastroenterology](https:\/\/health.stonybrookmedicine.edu\/topics\/gastroenterology\/)\n- [Health & Wellness](https:\/\/health.stonybrookmedicine.edu\/topics\/health-wellness\/)\n- [Heart and Vascular Health](https:\/\/health.stonybrookmedicine.edu\/topics\/heart-and-vascular-health\/)\n- [Infectious Diseases](https:\/\/health.stonybrookmedicine.edu\/topics\/infectious-diseases\/)\n- [Leadership](https:\/\/health.stonybrookmedicine.edu\/topics\/leadership\/)\n- [Mental Health](https:\/\/health.stonybrookmedicine.edu\/topics\/mental-health\/)\n- [Nephrology](https:\/\/health.stonybrookmedicine.edu\/topics\/nephrology\/)\n- [Nutrition and Weight Loss](https:\/\/health.stonybrookmedicine.edu\/topics\/nutrition-and-weight-loss\/)\n- [Orthopedics & Sports Medicine](https:\/\/health.stonybrookmedicine.edu\/topics\/orthopedic-sports-medicine\/)\n- [Pain Management](https:\/\/health.stonybrookmedicine.edu\/topics\/pain-management\/)\n- [Spine Care](https:\/\/health.stonybrookmedicine.edu\/topics\/spine-care\/)\n- [Trauma](https:\/\/health.stonybrookmedicine.edu\/topics\/trauma\/)\n- [Urology](https:\/\/health.stonybrookmedicine.edu\/topics\/urology\/)\n- [Women's Health](https:\/\/health.stonybrookmedicine.edu\/topics\/womens-health\/)","attrs_readable_markdown":"Sleep is an essential biological process that’s a reversible state of reduced responsiveness and motor activity. Sleep [supports our overall health](https:\/\/pubmed.ncbi.nlm.nih.gov\/19654581\/) in many ways. Among the various stages of sleep, deep sleep and REM sleep are particularly important for our well-being due to their restorative functions.\n\nFor example, deep sleep (also known as slow-wave sleep) is crucial for physical recovery, immune function and brain health, while REM sleep supports many aspects of [mental and emotional processing](https:\/\/pubmed.ncbi.nlm.nih.gov\/23923204\/).\n\n## Deep Sleep vs. REM Sleep: Are They the Same?\nThroughout the night, your body cycles through four sleep cycles. Each cycle is 80 to 100 minutes and consists of non-REM sleep stages and REM sleep.\n\nDeep sleep and REM sleep stages are both critical parts of restorative rest, but they serve different purposes in the sleep cycle.\n\n### Deep Sleep (Non-REM Stage 3 Sleep)\nThis is the most restorative stage of sleep and crucial for physical recovery and growth. During deep sleep, the body repairs tissues, builds bone and muscle, and [strengthens the immune system](https:\/\/pubmed.ncbi.nlm.nih.gov\/22071480\/).\n\n**Here are some key facts about deep sleep:**\n\n- Deep sleep occurs after the first two stages of sleep (NREM stage 1 and stage 2)\n- Brain waves are slow (delta waves) in this stage, and it’s difficult to wake someone up\n- It’s during deep sleep that the body builds up energy for the next day and carries out many restorative processes that keep the body resilient\n- Hormones needed for growth and appetite regulation are released during this stage\n- Young people typically spend more time in deep sleep than older people\n### REM Sleep\nREM sleep, which stands for rapid eye movement sleep, is vital for cognitive functions [such as memory](https:\/\/pubmed.ncbi.nlm.nih.gov\/28544929\/), learning and emotional processing. REM sleep is also when most dreaming occurs, and it is [thought to support](https:\/\/pubmed.ncbi.nlm.nih.gov\/29161567\/) brain development and emotional health.\n\n**Here are some key facts about REM sleep:**\n\n- This stage typically occurs about 90 minutes after falling asleep\n- REM sleep periods get longer through the night, with the longest periods occurring in the morning hours\n- Eyes move rapidly from side to side behind closed eyelids, associated with vivid dreams\n- Brain wave activity becomes closer to that seen in wakefulness\n- It plays a key role in memory consolidation and mood regulation\n## General Sleep Requirements for Adults\nFor most adults, the recommended amount of sleep is between [7 and 8 hours](https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC6045782\/) each night.\n\nAdults should aim to achieve about [20 percent of their sleep](https:\/\/www.sleepfoundation.org\/stages-of-sleep\/deep-sleep) in the deep stage, which equates to approximately 60-100 minutes of deep sleep during an 8-hour night.\n\nEnsuring a sufficient amount of deep sleep is essential for feeling rested and remaining healthy—as it helps to rejuvenate the body and supports functions ranging from metabolism to mood regulation.\n\n## Sleep Needs for Women vs. Men\nThe debate over whether women need more sleep than men is ongoing, with some research suggesting slight differences.\n\nAccording to the National Sleep Foundation, [research indicates](https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC6045782\/) that women may require more sleep than men due to [hormonal reasons](https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC6168103\/), and greater mental and emotional exertion during the day, which leads to a greater need for recovery during sleep.\n\nWomen tend to fall asleep faster and spend more time in deep sleep than men—[suggesting a greater need](https:\/\/pubmed.ncbi.nlm.nih.gov\/33519372\/) for rejuvenating rest.\n\nHowever, the difference between men’s and women’s sleep needs is typically small (women, on average, only sleep for about 11 to 14 minutes longer than men). Sleep needs also vary from person to person based on factors like age, lifestyle, stress and health status.\n\nOverall, both women and men [should aim to get](https:\/\/pubmed.ncbi.nlm.nih.gov\/29073412\/) at least 7 hours or more of sleep most nights.\n\n## The Negative Impact of Sleep Deprivation\nMore than [35 percent of U.S. adults](https:\/\/www.ncoa.org\/adviser\/sleep\/how-much-sleep\/) report sleeping fewer than seven hours daily.\n\nAdults who sleep less than 7 hours per night are more likely to deal with [various health issues](https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC4434546\/) due to how sleep deprivation impacts hormones, neurotransmitters (brain chemicals) and many other processes. Failing to get enough sleep, especially deep sleep, can have [profound implications](https:\/\/pubmed.ncbi.nlm.nih.gov\/32951993\/) for both physical and mental health.\n\n**Short-term effects of being sleep deprived can include:**\n\n- Reduced cognitive function, such as poor memory, learning and decision-making\n- Irritability\n- Increased stress responsiveness\n- Increased appetite and cravings\n\n**Long-term sleep deprivation can potentially contribute to serious health problems, such as:**\n\n- Higher risk of heart disease and diabetes\n- Greater risk for weight gain or obesity\n- Worsened mental health disorders, such as depression and anxiety\n### Tips for Optimizing Sleep for Better Health\n**To** [**promote better sleep**](https:\/\/www.sleepfoundation.org\/how-sleep-works\/how-much-sleep-do-we-really-need)**, try the following tips:**\n\n- Get regular exercise and sunlight exposure during the day time\n- Maintain a regular sleep schedule by going to bed and waking up at about the same time every day\n- Create a bedtime routine that is relaxing, like reading or taking a bath\/shower\n- Ensure your bedroom is quiet, dark and cool, with a comfortable mattress and white noise\n- Limit exposure to blue light from screens before bed, including from phones, tablets, TVs and computers\n- Avoid large meals, caffeine and alcohol before bedtime\n\n*At* [*Stony Brook Sleep Disorders Center*](https:\/\/www.stonybrookmedicine.edu\/patientcare\/pulmonary\/services\/specialty_centers\/sleep_disorders_center)*, specialists are dedicated to diagnosing and treating sleep disorders using state-of-the-art technology and personalized care plans. Recognizing the unique needs of each patient, they provide targeted treatments to improve sleep quality and address conditions such as sleep apnea, insomnia, and more.*\n\n![Mohammad M Amin, MBBCH](https:\/\/health.stonybrookmedicine.edu\/wp-content\/uploads\/2024\/11\/2882.jpg) Sleep Medicine Pulmonary Critical Care Clinical Associate Professor of Medicine Dr. Amin received his Medical degree from Cairo University, School of Medicine in 1990. He completed Internal Medicine residency at LICH, Brooklyn, NY. He completed Pulmonary, Critical Care and Sleep Medicine training at Stony Brook University, Stony Brook, NY.He is a key faculty member at the Division of Pulmonary, Critical Care and Sleep Medicine at Stony Brook University.He has been practicing Pulmonary, Critical Care and Sleep Medicine since 2004. He serves as a Medical Director of AASM accredited Sleep Center at Northport, VAMC. He devotes 50% of his practice to Sleep Medicine and provided Sleep Medicine services to patients living on Long Island. [View all posts](https:\/\/health.stonybrookmedicine.edu\/author\/mohammad-m-amin-mbbch\/ \"View all posts\")\n\n- [deep sleep](https:\/\/health.stonybrookmedicine.edu\/tag\/deep-sleep\/)\n- [REM sleep](https:\/\/health.stonybrookmedicine.edu\/tag\/rem-sleep\/)\n- [sleep](https:\/\/health.stonybrookmedicine.edu\/tag\/sleep\/)\n\n***This article is intended to be general and\/or educational in nature. Always consult your healthcare professional for help, diagnosis, guidance and treatment.***","meta_canonical":null}

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Meta Title	How Much Deep Sleep Do You Need? - Stony Brook Medicine Health News
Meta Description	Among the various stages of sleep, deep sleep and REM sleep are particularly important for our well-being due to their restorative functions.
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Boilerpipe Text	Sleep is an essential biological process that’s a reversible state of reduced responsiveness and motor activity. Sleep supports our overall health in many ways. Among the various stages of sleep, deep sleep and REM sleep are particularly important for our well-being due to their restorative functions. For example, deep sleep (also known as slow-wave sleep) is crucial for physical recovery, immune function and brain health, while REM sleep supports many aspects of mental and emotional processing . Deep Sleep vs. REM Sleep: Are They the Same? Throughout the night, your body cycles through four sleep cycles. Each cycle is 80 to 100 minutes and consists of non-REM sleep stages and REM sleep. Deep sleep and REM sleep stages are both critical parts of restorative rest, but they serve different purposes in the sleep cycle. Deep Sleep (Non-REM Stage 3 Sleep) This is the most restorative stage of sleep and crucial for physical recovery and growth. During deep sleep, the body repairs tissues, builds bone and muscle, and strengthens the immune system . Here are some key facts about deep sleep: Deep sleep occurs after the first two stages of sleep (NREM stage 1 and stage 2) Brain waves are slow (delta waves) in this stage, and it’s difficult to wake someone up It’s during deep sleep that the body builds up energy for the next day and carries out many restorative processes that keep the body resilient Hormones needed for growth and appetite regulation are released during this stage Young people typically spend more time in deep sleep than older people REM Sleep REM sleep, which stands for rapid eye movement sleep, is vital for cognitive functions such as memory , learning and emotional processing. REM sleep is also when most dreaming occurs, and it is thought to support brain development and emotional health. Here are some key facts about REM sleep: This stage typically occurs about 90 minutes after falling asleep REM sleep periods get longer through the night, with the longest periods occurring in the morning hours Eyes move rapidly from side to side behind closed eyelids, associated with vivid dreams Brain wave activity becomes closer to that seen in wakefulness It plays a key role in memory consolidation and mood regulation General Sleep Requirements for Adults For most adults, the recommended amount of sleep is between 7 and 8 hours each night. Adults should aim to achieve about 20 percent of their sleep in the deep stage, which equates to approximately 60-100 minutes of deep sleep during an 8-hour night. Ensuring a sufficient amount of deep sleep is essential for feeling rested and remaining healthy—as it helps to rejuvenate the body and supports functions ranging from metabolism to mood regulation. Sleep Needs for Women vs. Men The debate over whether women need more sleep than men is ongoing, with some research suggesting slight differences. According to the National Sleep Foundation, research indicates that women may require more sleep than men due to hormonal reasons , and greater mental and emotional exertion during the day, which leads to a greater need for recovery during sleep. Women tend to fall asleep faster and spend more time in deep sleep than men— suggesting a greater need for rejuvenating rest. However, the difference between men’s and women’s sleep needs is typically small (women, on average, only sleep for about 11 to 14 minutes longer than men). Sleep needs also vary from person to person based on factors like age, lifestyle, stress and health status. Overall, both women and men should aim to get at least 7 hours or more of sleep most nights. The Negative Impact of Sleep Deprivation More than 35 percent of U.S. adults report sleeping fewer than seven hours daily. Adults who sleep less than 7 hours per night are more likely to deal with various health issues due to how sleep deprivation impacts hormones, neurotransmitters (brain chemicals) and many other processes. Failing to get enough sleep, especially deep sleep, can have profound implications for both physical and mental health. Short-term effects of being sleep deprived can include: Reduced cognitive function, such as poor memory, learning and decision-making Irritability Increased stress responsiveness Increased appetite and cravings Long-term sleep deprivation can potentially contribute to serious health problems, such as: Higher risk of heart disease and diabetes Greater risk for weight gain or obesity Worsened mental health disorders, such as depression and anxiety Tips for Optimizing Sleep for Better Health To promote better sleep , try the following tips: Get regular exercise and sunlight exposure during the day time Maintain a regular sleep schedule by going to bed and waking up at about the same time every day Create a bedtime routine that is relaxing, like reading or taking a bath/shower Ensure your bedroom is quiet, dark and cool, with a comfortable mattress and white noise Limit exposure to blue light from screens before bed, including from phones, tablets, TVs and computers Avoid large meals, caffeine and alcohol before bedtime At Stony Brook Sleep Disorders Center , specialists are dedicated to diagnosing and treating sleep disorders using state-of-the-art technology and personalized care plans. Recognizing the unique needs of each patient, they provide targeted treatments to improve sleep quality and address conditions such as sleep apnea, insomnia, and more. Sleep Medicine Pulmonary Critical Care Clinical Associate Professor of Medicine Dr. Amin received his Medical degree from Cairo University, School of Medicine in 1990. He completed Internal Medicine residency at LICH, Brooklyn, NY. He completed Pulmonary, Critical Care and Sleep Medicine training at Stony Brook University, Stony Brook, NY.He is a key faculty member at the Division of Pulmonary, Critical Care and Sleep Medicine at Stony Brook University.He has been practicing Pulmonary, Critical Care and Sleep Medicine since 2004. He serves as a Medical Director of AASM accredited Sleep Center at Northport, VAMC. He devotes 50% of his practice to Sleep Medicine and provided Sleep Medicine services to patients living on Long Island. View all posts deep sleep REM sleep sleep This article is intended to be general and/or educational in nature. Always consult your healthcare professional for help, diagnosis, guidance and treatment.
Markdown	[Skip to content](https://health.stonybrookmedicine.edu/how-much-deep-sleep-do-you-need/#content) [![Stony Brook Medicine Health News](https://health.stonybrookmedicine.edu/wp-content/uploads/2023/12/SBM-News-Hub-Header.png)](https://health.stonybrookmedicine.edu/) - [Home](https://health.stonybrookmedicine.edu/) - [Topics](https://health.stonybrookmedicine.edu/how-much-deep-sleep-do-you-need/) - - - [Brain & Mental Health](https://health.stonybrookmedicine.edu/topics/brain-and-mental-health/) - [Cancer Care & Research](https://health.stonybrookmedicine.edu/topics/cancer/) - [Children’s Health](https://health.stonybrookmedicine.edu/topics/childrens/) - [Diseases & Conditions](https://health.stonybrookmedicine.edu/topics/diseases-conditions/) - [Heart and Vascular Health](https://health.stonybrookmedicine.edu/topics/heart-and-vascular-health/) - - [Health & Wellness](https://health.stonybrookmedicine.edu/topics/health-wellness/) - [Orthopedics & Sports Medicine](https://health.stonybrookmedicine.edu/topics/orthopedic-sports-medicine/) - [Spine Care](https://health.stonybrookmedicine.edu/topics/spine-care/) - [Trauma](https://health.stonybrookmedicine.edu/topics/trauma/) - [Women's Health](https://health.stonybrookmedicine.edu/topics/womens-health/) - [Podcasts](https://health.stonybrookmedicine.edu/podcasts/) - [Find a Doctor](https://doctors.stonybrookmedicine.edu/search?sort=relevance%2Cnetworks%2Cavailability_density_best) [![Stony Brook Medicine Health News](https://health.stonybrookmedicine.edu/wp-content/uploads/2023/12/SBM-News-Hub-Header.png)](https://health.stonybrookmedicine.edu/) - [Home](https://health.stonybrookmedicine.edu/) - [Topics](https://health.stonybrookmedicine.edu/how-much-deep-sleep-do-you-need/) - - - [Brain & Mental Health](https://health.stonybrookmedicine.edu/topics/brain-and-mental-health/) - [Cancer Care & Research](https://health.stonybrookmedicine.edu/topics/cancer/) - [Children’s Health](https://health.stonybrookmedicine.edu/topics/childrens/) - [Diseases & Conditions](https://health.stonybrookmedicine.edu/topics/diseases-conditions/) - [Heart and Vascular Health](https://health.stonybrookmedicine.edu/topics/heart-and-vascular-health/) - - [Health & Wellness](https://health.stonybrookmedicine.edu/topics/health-wellness/) - [Orthopedics & Sports Medicine](https://health.stonybrookmedicine.edu/topics/orthopedic-sports-medicine/) - [Spine Care](https://health.stonybrookmedicine.edu/topics/spine-care/) - [Trauma](https://health.stonybrookmedicine.edu/topics/trauma/) - [Women's Health](https://health.stonybrookmedicine.edu/topics/womens-health/) - [Podcasts](https://health.stonybrookmedicine.edu/podcasts/) - [Find a Doctor](https://doctors.stonybrookmedicine.edu/search?sort=relevance%2Cnetworks%2Cavailability_density_best) [![Stony Brook Medicine Health News](https://health.stonybrookmedicine.edu/wp-content/uploads/2023/12/SBM-News-Hub-Header1x.png)](https://health.stonybrookmedicine.edu/) ![A woman deep sleeping peacefully in her bed.](https://health.stonybrookmedicine.edu/wp-content/uploads/2024/11/How-Much-Deep-Sleep.jpg) [Facebook](https://health.stonybrookmedicine.edu/how-much-deep-sleep-do-you-need/)[X](https://health.stonybrookmedicine.edu/how-much-deep-sleep-do-you-need/)[Email](mailto:?subject=How%20Much%20Deep%20Sleep%20Do%20You%20Need%3F&body=https%3A%2F%2Fhealth.stonybrookmedicine.edu%2Fhow-much-deep-sleep-do-you-need%2F)[LinkedIn](https://health.stonybrookmedicine.edu/how-much-deep-sleep-do-you-need/) - [Brain & Mental Health](https://health.stonybrookmedicine.edu/topics/brain-and-mental-health/) - [Health & Wellness](https://health.stonybrookmedicine.edu/topics/health-wellness/) # How Much Deep Sleep Do You Need? November 6, 2024 5 min read Sleep is an essential biological process that’s a reversible state of reduced responsiveness and motor activity. Sleep [supports our overall health](https://pubmed.ncbi.nlm.nih.gov/19654581/) in many ways. Among the various stages of sleep, deep sleep and REM sleep are particularly important for our well-being due to their restorative functions. For example, deep sleep (also known as slow-wave sleep) is crucial for physical recovery, immune function and brain health, while REM sleep supports many aspects of [mental and emotional processing](https://pubmed.ncbi.nlm.nih.gov/23923204/). ## Deep Sleep vs. REM Sleep: Are They the Same? Throughout the night, your body cycles through four sleep cycles. Each cycle is 80 to 100 minutes and consists of non-REM sleep stages and REM sleep. Deep sleep and REM sleep stages are both critical parts of restorative rest, but they serve different purposes in the sleep cycle. ### Deep Sleep (Non-REM Stage 3 Sleep) This is the most restorative stage of sleep and crucial for physical recovery and growth. During deep sleep, the body repairs tissues, builds bone and muscle, and [strengthens the immune system](https://pubmed.ncbi.nlm.nih.gov/22071480/). Here are some key facts about deep sleep: - Deep sleep occurs after the first two stages of sleep (NREM stage 1 and stage 2) - Brain waves are slow (delta waves) in this stage, and it’s difficult to wake someone up - It’s during deep sleep that the body builds up energy for the next day and carries out many restorative processes that keep the body resilient - Hormones needed for growth and appetite regulation are released during this stage - Young people typically spend more time in deep sleep than older people ### REM Sleep REM sleep, which stands for rapid eye movement sleep, is vital for cognitive functions [such as memory](https://pubmed.ncbi.nlm.nih.gov/28544929/), learning and emotional processing. REM sleep is also when most dreaming occurs, and it is [thought to support](https://pubmed.ncbi.nlm.nih.gov/29161567/) brain development and emotional health. Here are some key facts about REM sleep: - This stage typically occurs about 90 minutes after falling asleep - REM sleep periods get longer through the night, with the longest periods occurring in the morning hours - Eyes move rapidly from side to side behind closed eyelids, associated with vivid dreams - Brain wave activity becomes closer to that seen in wakefulness - It plays a key role in memory consolidation and mood regulation ## General Sleep Requirements for Adults For most adults, the recommended amount of sleep is between [7 and 8 hours](https://pmc.ncbi.nlm.nih.gov/articles/PMC6045782/) each night. Adults should aim to achieve about [20 percent of their sleep](https://www.sleepfoundation.org/stages-of-sleep/deep-sleep) in the deep stage, which equates to approximately 60-100 minutes of deep sleep during an 8-hour night. Ensuring a sufficient amount of deep sleep is essential for feeling rested and remaining healthy—as it helps to rejuvenate the body and supports functions ranging from metabolism to mood regulation. ## Sleep Needs for Women vs. Men The debate over whether women need more sleep than men is ongoing, with some research suggesting slight differences. According to the National Sleep Foundation, [research indicates](https://pmc.ncbi.nlm.nih.gov/articles/PMC6045782/) that women may require more sleep than men due to [hormonal reasons](https://pmc.ncbi.nlm.nih.gov/articles/PMC6168103/), and greater mental and emotional exertion during the day, which leads to a greater need for recovery during sleep. Women tend to fall asleep faster and spend more time in deep sleep than men—[suggesting a greater need](https://pubmed.ncbi.nlm.nih.gov/33519372/) for rejuvenating rest. However, the difference between men’s and women’s sleep needs is typically small (women, on average, only sleep for about 11 to 14 minutes longer than men). Sleep needs also vary from person to person based on factors like age, lifestyle, stress and health status. Overall, both women and men [should aim to get](https://pubmed.ncbi.nlm.nih.gov/29073412/) at least 7 hours or more of sleep most nights. ## The Negative Impact of Sleep Deprivation More than [35 percent of U.S. adults](https://www.ncoa.org/adviser/sleep/how-much-sleep/) report sleeping fewer than seven hours daily. Adults who sleep less than 7 hours per night are more likely to deal with [various health issues](https://pmc.ncbi.nlm.nih.gov/articles/PMC4434546/) due to how sleep deprivation impacts hormones, neurotransmitters (brain chemicals) and many other processes. Failing to get enough sleep, especially deep sleep, can have [profound implications](https://pubmed.ncbi.nlm.nih.gov/32951993/) for both physical and mental health. Short-term effects of being sleep deprived can include: - Reduced cognitive function, such as poor memory, learning and decision-making - Irritability - Increased stress responsiveness - Increased appetite and cravings Long-term sleep deprivation can potentially contribute to serious health problems, such as: - Higher risk of heart disease and diabetes - Greater risk for weight gain or obesity - Worsened mental health disorders, such as depression and anxiety ### Tips for Optimizing Sleep for Better Health To [promote better sleep](https://www.sleepfoundation.org/how-sleep-works/how-much-sleep-do-we-really-need), try the following tips: - Get regular exercise and sunlight exposure during the day time - Maintain a regular sleep schedule by going to bed and waking up at about the same time every day - Create a bedtime routine that is relaxing, like reading or taking a bath/shower - Ensure your bedroom is quiet, dark and cool, with a comfortable mattress and white noise - Limit exposure to blue light from screens before bed, including from phones, tablets, TVs and computers - Avoid large meals, caffeine and alcohol before bedtime At [Stony Brook Sleep Disorders Center](https://www.stonybrookmedicine.edu/patientcare/pulmonary/services/specialty_centers/sleep_disorders_center), specialists are dedicated to diagnosing and treating sleep disorders using state-of-the-art technology and personalized care plans. Recognizing the unique needs of each patient, they provide targeted treatments to improve sleep quality and address conditions such as sleep apnea, insomnia, and more. - ![Mohammad M Amin, MBBCH](https://health.stonybrookmedicine.edu/wp-content/uploads/2024/11/2882.jpg) [Mohammad M Amin, MBBCH](https://health.stonybrookmedicine.edu/author/mohammad-m-amin-mbbch/ "Mohammad M Amin, MBBCH") Sleep Medicine Pulmonary Critical Care Clinical Associate Professor of Medicine Dr. Amin received his Medical degree from Cairo University, School of Medicine in 1990. He completed Internal Medicine residency at LICH, Brooklyn, NY. He completed Pulmonary, Critical Care and Sleep Medicine training at Stony Brook University, Stony Brook, NY.He is a key faculty member at the Division of Pulmonary, Critical Care and Sleep Medicine at Stony Brook University.He has been practicing Pulmonary, Critical Care and Sleep Medicine since 2004. He serves as a Medical Director of AASM accredited Sleep Center at Northport, VAMC. He devotes 50% of his practice to Sleep Medicine and provided Sleep Medicine services to patients living on Long Island. [View all posts](https://health.stonybrookmedicine.edu/author/mohammad-m-amin-mbbch/ "View all posts") - [deep sleep](https://health.stonybrookmedicine.edu/tag/deep-sleep/) - [REM sleep](https://health.stonybrookmedicine.edu/tag/rem-sleep/) - [sleep](https://health.stonybrookmedicine.edu/tag/sleep/) *This article is intended to be general and/or educational in nature. 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Readable Markdown	Sleep is an essential biological process that’s a reversible state of reduced responsiveness and motor activity. Sleep [supports our overall health](https://pubmed.ncbi.nlm.nih.gov/19654581/) in many ways. Among the various stages of sleep, deep sleep and REM sleep are particularly important for our well-being due to their restorative functions. For example, deep sleep (also known as slow-wave sleep) is crucial for physical recovery, immune function and brain health, while REM sleep supports many aspects of [mental and emotional processing](https://pubmed.ncbi.nlm.nih.gov/23923204/). ## Deep Sleep vs. REM Sleep: Are They the Same? Throughout the night, your body cycles through four sleep cycles. Each cycle is 80 to 100 minutes and consists of non-REM sleep stages and REM sleep. Deep sleep and REM sleep stages are both critical parts of restorative rest, but they serve different purposes in the sleep cycle. ### Deep Sleep (Non-REM Stage 3 Sleep) This is the most restorative stage of sleep and crucial for physical recovery and growth. During deep sleep, the body repairs tissues, builds bone and muscle, and [strengthens the immune system](https://pubmed.ncbi.nlm.nih.gov/22071480/). Here are some key facts about deep sleep: - Deep sleep occurs after the first two stages of sleep (NREM stage 1 and stage 2) - Brain waves are slow (delta waves) in this stage, and it’s difficult to wake someone up - It’s during deep sleep that the body builds up energy for the next day and carries out many restorative processes that keep the body resilient - Hormones needed for growth and appetite regulation are released during this stage - Young people typically spend more time in deep sleep than older people ### REM Sleep REM sleep, which stands for rapid eye movement sleep, is vital for cognitive functions [such as memory](https://pubmed.ncbi.nlm.nih.gov/28544929/), learning and emotional processing. REM sleep is also when most dreaming occurs, and it is [thought to support](https://pubmed.ncbi.nlm.nih.gov/29161567/) brain development and emotional health. Here are some key facts about REM sleep: - This stage typically occurs about 90 minutes after falling asleep - REM sleep periods get longer through the night, with the longest periods occurring in the morning hours - Eyes move rapidly from side to side behind closed eyelids, associated with vivid dreams - Brain wave activity becomes closer to that seen in wakefulness - It plays a key role in memory consolidation and mood regulation ## General Sleep Requirements for Adults For most adults, the recommended amount of sleep is between [7 and 8 hours](https://pmc.ncbi.nlm.nih.gov/articles/PMC6045782/) each night. Adults should aim to achieve about [20 percent of their sleep](https://www.sleepfoundation.org/stages-of-sleep/deep-sleep) in the deep stage, which equates to approximately 60-100 minutes of deep sleep during an 8-hour night. Ensuring a sufficient amount of deep sleep is essential for feeling rested and remaining healthy—as it helps to rejuvenate the body and supports functions ranging from metabolism to mood regulation. ## Sleep Needs for Women vs. Men The debate over whether women need more sleep than men is ongoing, with some research suggesting slight differences. According to the National Sleep Foundation, [research indicates](https://pmc.ncbi.nlm.nih.gov/articles/PMC6045782/) that women may require more sleep than men due to [hormonal reasons](https://pmc.ncbi.nlm.nih.gov/articles/PMC6168103/), and greater mental and emotional exertion during the day, which leads to a greater need for recovery during sleep. Women tend to fall asleep faster and spend more time in deep sleep than men—[suggesting a greater need](https://pubmed.ncbi.nlm.nih.gov/33519372/) for rejuvenating rest. However, the difference between men’s and women’s sleep needs is typically small (women, on average, only sleep for about 11 to 14 minutes longer than men). Sleep needs also vary from person to person based on factors like age, lifestyle, stress and health status. Overall, both women and men [should aim to get](https://pubmed.ncbi.nlm.nih.gov/29073412/) at least 7 hours or more of sleep most nights. ## The Negative Impact of Sleep Deprivation More than [35 percent of U.S. adults](https://www.ncoa.org/adviser/sleep/how-much-sleep/) report sleeping fewer than seven hours daily. Adults who sleep less than 7 hours per night are more likely to deal with [various health issues](https://pmc.ncbi.nlm.nih.gov/articles/PMC4434546/) due to how sleep deprivation impacts hormones, neurotransmitters (brain chemicals) and many other processes. Failing to get enough sleep, especially deep sleep, can have [profound implications](https://pubmed.ncbi.nlm.nih.gov/32951993/) for both physical and mental health. Short-term effects of being sleep deprived can include: - Reduced cognitive function, such as poor memory, learning and decision-making - Irritability - Increased stress responsiveness - Increased appetite and cravings Long-term sleep deprivation can potentially contribute to serious health problems, such as: - Higher risk of heart disease and diabetes - Greater risk for weight gain or obesity - Worsened mental health disorders, such as depression and anxiety ### Tips for Optimizing Sleep for Better Health To [promote better sleep](https://www.sleepfoundation.org/how-sleep-works/how-much-sleep-do-we-really-need), try the following tips: - Get regular exercise and sunlight exposure during the day time - Maintain a regular sleep schedule by going to bed and waking up at about the same time every day - Create a bedtime routine that is relaxing, like reading or taking a bath/shower - Ensure your bedroom is quiet, dark and cool, with a comfortable mattress and white noise - Limit exposure to blue light from screens before bed, including from phones, tablets, TVs and computers - Avoid large meals, caffeine and alcohol before bedtime At [Stony Brook Sleep Disorders Center](https://www.stonybrookmedicine.edu/patientcare/pulmonary/services/specialty_centers/sleep_disorders_center), specialists are dedicated to diagnosing and treating sleep disorders using state-of-the-art technology and personalized care plans. Recognizing the unique needs of each patient, they provide targeted treatments to improve sleep quality and address conditions such as sleep apnea, insomnia, and more. ![Mohammad M Amin, MBBCH](https://health.stonybrookmedicine.edu/wp-content/uploads/2024/11/2882.jpg) Sleep Medicine Pulmonary Critical Care Clinical Associate Professor of Medicine Dr. Amin received his Medical degree from Cairo University, School of Medicine in 1990. He completed Internal Medicine residency at LICH, Brooklyn, NY. He completed Pulmonary, Critical Care and Sleep Medicine training at Stony Brook University, Stony Brook, NY.He is a key faculty member at the Division of Pulmonary, Critical Care and Sleep Medicine at Stony Brook University.He has been practicing Pulmonary, Critical Care and Sleep Medicine since 2004. He serves as a Medical Director of AASM accredited Sleep Center at Northport, VAMC. He devotes 50% of his practice to Sleep Medicine and provided Sleep Medicine services to patients living on Long Island. [View all posts](https://health.stonybrookmedicine.edu/author/mohammad-m-amin-mbbch/ "View all posts") - [deep sleep](https://health.stonybrookmedicine.edu/tag/deep-sleep/) - [REM sleep](https://health.stonybrookmedicine.edu/tag/rem-sleep/) - [sleep](https://health.stonybrookmedicine.edu/tag/sleep/) *This article is intended to be general and/or educational in nature. Always consult your healthcare professional for help, diagnosis, guidance and treatment.*
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