🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 83 (from laksa112)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa083.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://www.realsimple.com/how-much-sleep-you-need-8765879\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.realsimple.com/how-much-sleep-you-need-8765879\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.realsimple.com\/how-much-sleep-you-need-8765879","crawl_time":1775768264,"first_indexed_time":1735523400,"http_code":200,"src_unparsed":"com,realsimple!www,\/how-much-sleep-you-need-8765879 s443","src_root_hash":"15799792504981081483","history_drop_reason":null,"meta_title":"This Is How Much Sleep You Need Every Single Night","meta_descriptions":["Figuring out the exact amount of sleep you need each night can be a challenge—that's why we asked sleep experts how much sleep you really need depending on your age."],"attrs_boilerpipe_text":"Here's how much sleep you really need, based on your age.\nBy\nMaggie Seaver\nMaggie Seaver is the digital health and wellness editor at Real Simple, with seven years of experience writing lifestyle and wellness content. She spends her days writing and editing stories about sleep, mental health, fitness, preventive health, nutrition, personal development, relationships, healthy habits, and beyond. She loves demystifying complicated health topics, debunking wellness fads, and sharing practical, science-backed solutions for healthy living.\nUpdated on December 08, 2025\nCredit:\nLiudmila Evsegneeva\/Getty Images\nKey Takeaways\nSleep is crucial for health; adults generally need 7-9 hours each night for optimal functioning.\nSleep requirements vary with age; for instance, newborns need up to 17 hours, while older adults only need 7-8 hours.\nConsistently missing sleep can lead to serious health issues, so consult a doctor if you struggle with sleep deprivation.\nSleep is more than a sweet escape or rare reward to enjoy when you’re lucky. Sufficient sleep is vital to nearly every facet of overall health. While sleep still remains a relatively mysterious phenomenon, we do know it’s essential for letting the brain and body reset and recharge. While you sleep, you’re storing and wiping information, encoding memories, regenerating cells, and regulating complex systems, like your\nmetabolism and immune system\n. Needless to say, you need sleep—and probably more of it than you already get.\nIn order to experience optimal sleep benefits, you need to get the right amount of sleep—every night. How much sleep you need naturally depends on several individual factors, including your age, health, and even DNA. However, \nThe National Sleep Foundation\n does provide updated recommended sleep duration guidelines by age, based on \nscientific research\n conducted over two years by 18 different sleep experts. And it’s here for you the next time you’re wondering,\nHow much sleep do I need?\nThe Science Behind Sleep\nThe sleep rumors are true: The average adult, between 18 and 64 years old, should get seven to nine hours of sleep every night. This number of hours allows your brain and body to get as much REM sleep and deep sleep as they need (you need multiple cycles of both types of sleep for an adequate nightly slumber). On the other hand, newborns and infants need the most sleep to optimize postnatal development: 14 to 17 hours, and 12 to 15 hours, respectively. There’s also scientific validation for teenagers’ notorious sleep habits: 14- to 17-year-olds need a solid 8 to 10 hours (so let them sleep!). And starting around age 65, older adults only require seven to eight hours, not quite as much as they may \nneed in early and middle adulthood\n.\nSome adults find seven hours to be a perfectly sufficient amount of sleep, while others need closer to nine (maybe even 10) hours to feel fully rested. And remember, while some people may pride themselves on being able to function on five or six hours of sleep, the truth is, \nthey’re likely severely sleep deprived\n without realizing it. The effects of insufficient sleep can be immediate, but they can also accumulate gradually and manifest in myriad health problems.\nHow Much Sleep Do You Need?\nIn his book \nWhy We Sleep: Unlocking the Power of Sleep and Dreams\n, Matthew Walker, PhD, a professor and director of UC Berkeley’s Sleep and Neuroimaging Lab, describes scientific research that concludes sleeping for only six hours a night for 10 days can make you as impaired as someone who has been awake for 24 consecutive hours. One recent sleep study finds that losing just 16 minutes of sleep can be detrimental to\nalertness and concentration\n—so imagine what regularly losing hours of sleep could do.\nHere’s a full breakdown of how much sleep you need at every age, straight from The National Sleep Foundation's research. When in doubt, adults should aim for seven to nine hours to stay as happy and healthy as possible. But speak to your doctor or a sleep specialist if you're worried that\nchronic sleep deprivation\n or other sleep disorders are preventing you from getting the sleep you need and deserve.\nNewborns (0 to 3 months): 4 to 17 hours each day\nInfants (4 to 11 months): 12 to 15 hours\nToddlers (1 to 2 years): 11 to 14 hours\nPreschoolers (3 to 5): 10 to 13 hours\nSchool age children (6 to 13): 9 to 11 hours\nTeenagers (14 to 17): 8 to 10 hours\nYounger adults (18 to 25): 7 to 9 hours\nAdults (26 to 64): 7 to 9 hours\nOlder adults (65 and older): 7 to 8 hours\nWas this page helpful?\nTell us why!","attrs_markdown":"\n\n[Skip to content](https:\/\/www.realsimple.com\/how-much-sleep-you-need-8765879#main)\n\n[Real Simple](https:\/\/www.realsimple.com\/)\n\n- Please fill out this field.\n- Magazine\n  - [Subscribe](https:\/\/www.realsimple.com\/how-much-sleep-you-need-8765879)\n  - [Manage Your Subscription](https:\/\/w1.buysub.com\/pubs\/MR\/RSP\/Login_No_API.jsp?cds_page_id=226570&cds_mag_code=RSP&id=1658963908658&lsid=22081818286077739&vid=1)\n  - 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[St. Patrick's Day](https:\/\/www.realsimple.com\/holidays-entertaining\/holidays\/st-patricks-day)\n  - [Easter](https:\/\/www.realsimple.com\/holidays-entertaining\/holidays\/easter)\n  - [Seasonal Events](https:\/\/www.realsimple.com\/holidays-entertaining\/entertaining\/seasonal-events)\n  - [View All](https:\/\/www.realsimple.com\/holidays-entertaining)\n- [Life](https:\/\/www.realsimple.com\/work-life)\n  - [Money and Finance](https:\/\/www.realsimple.com\/money-finance-11902839)\n  - [Culture and Trends](https:\/\/www.realsimple.com\/culture-trends-11902926)\n  - [Entertainment](https:\/\/www.realsimple.com\/work-life\/entertainment)\n  - [Relationships](https:\/\/www.realsimple.com\/relationships-11903741)\n  - [Travel Ideas](https:\/\/www.realsimple.com\/work-life\/travel)\n  - [Life Strategies](https:\/\/www.realsimple.com\/work-life\/life-strategies)\n  - [View All](https:\/\/www.realsimple.com\/work-life)\n- [News](https:\/\/www.realsimple.com\/news)\n\n[About Us](https:\/\/www.realsimple.com\/about-us-5546943)\n\n[Subscribe](https:\/\/www.realsimple.com\/how-much-sleep-you-need-8765879)\n\n- Top Stories\n- [Best Vegetable for Heart Health](https:\/\/www.realsimple.com\/the-one-vegetable-for-better-heart-health-according-to-a-cardiologist-11919896)\n- [What Happens If You Eat Sourdough Every day](https:\/\/www.realsimple.com\/what-happens-when-you-eat-sourdough-bread-every-day-11922494)\n- [Living Room Design Rules You Should Break](https:\/\/www.realsimple.com\/living-room-design-rules-you-should-break-11925792)\n- [Read These Books Before You See the Movie](https:\/\/www.realsimple.com\/books-to-read-before-watching-the-movie-11927476)\n\n# This Is How Much Sleep You Need Every Single Night, According to Experts\nHere's how much sleep you really need, based on your age.\n\nBy\n\n[Maggie Seaver](https:\/\/www.realsimple.com\/author\/maggie-seaver)\n\n![Maggie Seaver ]()\n\n![Maggie Seaver ](https:\/\/www.realsimple.com\/thmb\/-X17oLKH6jwwkrmbu7WfhNUb1Jo=\/200x200\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/maggie-seaver-ecdd97e9aebd433088c58836fd9ca6b0.jpg)\n\n[Maggie Seaver](https:\/\/www.realsimple.com\/author\/maggie-seaver)\n\nMaggie Seaver is the digital health and wellness editor at Real Simple, with seven years of experience writing lifestyle and wellness content. She spends her days writing and editing stories about sleep, mental health, fitness, preventive health, nutrition, personal development, relationships, healthy habits, and beyond. She loves demystifying complicated health topics, debunking wellness fads, and sharing practical, science-backed solutions for healthy living.\n\n[Real Simple's Editorial Guidelines](https:\/\/www.realsimple.com\/about-us-5546943#toc-editorial-guidelines)\n\nUpdated on December 08, 2025\n\nClose\n\n![Apartments design. Part of bedroom. Mixed Japanese and Scandinavia style.](https:\/\/www.realsimple.com\/thmb\/elQe6jrUdCcN0YtAt3-yDarwrU4=\/1500x0\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/how-much-sleep-every-night-GettyImages-1441461206-4c51141d3f9f4a3f88b43b12c2b89666.jpg)\n\n![Apartments design. Part of bedroom. Mixed Japanese and Scandinavia style.](https:\/\/www.realsimple.com\/thmb\/elQe6jrUdCcN0YtAt3-yDarwrU4=\/1500x0\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/how-much-sleep-every-night-GettyImages-1441461206-4c51141d3f9f4a3f88b43b12c2b89666.jpg)\n\nCredit:\n\nLiudmila Evsegneeva\/Getty Images\n\n### Key Takeaways\n- Sleep is crucial for health; adults generally need 7-9 hours each night for optimal functioning.\n- Sleep requirements vary with age; for instance, newborns need up to 17 hours, while older adults only need 7-8 hours.\n- Consistently missing sleep can lead to serious health issues, so consult a doctor if you struggle with sleep deprivation.\n\nSleep is more than a sweet escape or rare reward to enjoy when you’re lucky. Sufficient sleep is vital to nearly every facet of overall health. While sleep still remains a relatively mysterious phenomenon, we do know it’s essential for letting the brain and body reset and recharge. While you sleep, you’re storing and wiping information, encoding memories, regenerating cells, and regulating complex systems, like your [metabolism and immune system](https:\/\/www.realsimple.com\/sleep-habits-to-live-to-100-8752455). Needless to say, you need sleep—and probably more of it than you already get.\n\nIn order to experience optimal sleep benefits, you need to get the right amount of sleep—every night. How much sleep you need naturally depends on several individual factors, including your age, health, and even DNA. However, [The National Sleep Foundation](https:\/\/www.sleepfoundation.org\/articles\/how-much-sleep-do-we-really-need) does provide updated recommended sleep duration guidelines by age, based on [scientific research](https:\/\/www.sleephealthjournal.org\/article\/S2352-7218%2815%2900015-7\/fulltext) conducted over two years by 18 different sleep experts. And it’s here for you the next time you’re wondering, *How much sleep do I need?*\n\n## The Science Behind Sleep\nThe sleep rumors are true: The average adult, between 18 and 64 years old, should get seven to nine hours of sleep every night. This number of hours allows your brain and body to get as much REM sleep and deep sleep as they need (you need multiple cycles of both types of sleep for an adequate nightly slumber). On the other hand, newborns and infants need the most sleep to optimize postnatal development: 14 to 17 hours, and 12 to 15 hours, respectively. There’s also scientific validation for teenagers’ notorious sleep habits: 14- to 17-year-olds need a solid 8 to 10 hours (so let them sleep!). And starting around age 65, older adults only require seven to eight hours, not quite as much as they may [need in early and middle adulthood](https:\/\/www.realsimple.com\/how-to-fall-asleep-fast-8701634).\n\nSome adults find seven hours to be a perfectly sufficient amount of sleep, while others need closer to nine (maybe even 10) hours to feel fully rested. And remember, while some people may pride themselves on being able to function on five or six hours of sleep, the truth is, [they’re likely severely sleep deprived](https:\/\/www.realsimple.com\/health\/preventative-health\/sleep\/sneaky-signs-sleep-deprived) without realizing it. The effects of insufficient sleep can be immediate, but they can also accumulate gradually and manifest in myriad health problems.\n\n## How Much Sleep Do You Need?\nIn his book *Why We Sleep: Unlocking the Power of Sleep and Dreams*, Matthew Walker, PhD, a professor and director of UC Berkeley’s Sleep and Neuroimaging Lab, describes scientific research that concludes sleeping for only six hours a night for 10 days can make you as impaired as someone who has been awake for 24 consecutive hours. One recent sleep study finds that losing just 16 minutes of sleep can be detrimental to [alertness and concentration](https:\/\/www.realsimple.com\/what-is-good-sleep-hygiene-8730838)—so imagine what regularly losing hours of sleep could do.\n\nHere’s a full breakdown of how much sleep you need at every age, straight from The National Sleep Foundation's research. When in doubt, adults should aim for seven to nine hours to stay as happy and healthy as possible. But speak to your doctor or a sleep specialist if you're worried that [chronic sleep deprivation](https:\/\/www.realsimple.com\/habits-to-sleep-better-8710591) or other sleep disorders are preventing you from getting the sleep you need and deserve.\n\n- Newborns (0 to 3 months): 4 to 17 hours each day\n- Infants (4 to 11 months): 12 to 15 hours\n- Toddlers (1 to 2 years): 11 to 14 hours\n- Preschoolers (3 to 5): 10 to 13 hours\n- School age children (6 to 13): 9 to 11 hours\n- Teenagers (14 to 17): 8 to 10 hours\n- Younger adults (18 to 25): 7 to 9 hours\n- Adults (26 to 64): 7 to 9 hours\n- Older adults (65 and older): 7 to 8 hours\n\nExplore more:\n\n- [Health](https:\/\/www.realsimple.com\/health)\n- [Wellness](https:\/\/www.realsimple.com\/wellness-6375161)\n- [Sleep](https:\/\/www.realsimple.com\/health\/preventative-health\/sleep)\n\nWas this page helpful?\n\nThanks for your feedback\\!\n\nTell us why\\!\n\nOther\n\n## Related Articles\n[![orange cat sleeping with a yellow sleep mask]() ![orange cat sleeping with a yellow sleep mask](https:\/\/www.realsimple.com\/thmb\/gitnWi9daTTqPm1aNWubvT41khw=\/282x188\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/perfect-nap-2000-5d009b72950b4c089198af67a5133303.jpg) This Is the Perfect Amount of Time to Nap Without Ruining Your Sleep at Night, Experts Say](https:\/\/www.realsimple.com\/how-long-should-a-nap-be-11711934)\n\n[![twin beds in a bedroom]() ![twin beds in a bedroom](https:\/\/www.realsimple.com\/thmb\/0IctBJfiy8Y6Tuv593yYDe4NzPU=\/282x188\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/couples-sleeping-apart-GettyImages-647280860-13f8c70ec8174e499897ecb3f830d4c4.jpg) 35% of Americans Prefer Sleeping in a Separate Bed from Their Partner, According to New Survey](https:\/\/www.realsimple.com\/couples-sleep-survey-8718825)\n\n[![navy-seal-sleep-technique-GettyImages-1472380342]() ![navy-seal-sleep-technique-GettyImages-1472380342](https:\/\/www.realsimple.com\/thmb\/HF9CUVV1VeLSfEYgZKHhYsu6ZgI=\/282x188\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/navy-seal-sleep-technique-GettyImages-1472380342-a38a006100b842e0ad1c00ba3d18be38.jpg) Is the 'Navy SEAL Sleep Technique' Your Key to the Ultimate Power Nap?](https:\/\/www.realsimple.com\/navy-seal-sleep-technique-7564094)\n\n[![two sleep masks]() ![two sleep masks](https:\/\/www.realsimple.com\/thmb\/xFB9sBTOKrmgGprM1oTQQkMH58U=\/282x188\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/sleepingwithpartner1-7aa425c9a6774e3b846429e9167d9266.jpg) 5 Ways to Get a Good Night’s Rest When Your Partner Has Different Sleep Preferences](https:\/\/www.realsimple.com\/how-to-get-more-sleep-partner-different-preferences-11711936)\n\n[![Monochrome bedroom with a double bed with side tables flat style single color interior]() ![Monochrome bedroom with a double bed with side tables flat style single color interior](https:\/\/www.realsimple.com\/thmb\/OTVCFxxLE12sf4aoJ-dAsRZ82pA=\/282x188\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/sleep-culture-study-GettyImages-1394094896-fce873218cf04a939b4b3d4140df972f.jpg) How Much Sleep You Really Need Might Depend on Where You Live, New Study Says](https:\/\/www.realsimple.com\/sleep-location-study-2025-11734769)\n\n[![Standard hotel room in a luxury hotel in Moscow]() ![Standard hotel room in a luxury hotel in Moscow](https:\/\/www.realsimple.com\/thmb\/fhtdIPjrETPbZ55fUp1AI2s64-U=\/282x188\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/sleep-divorce-1207490291-2000-3309066c0e9b48ecaf21792828535def.jpg) I Got a Sleep Divorce and My Health (and Relationship) Has Never Been Better](https:\/\/www.realsimple.com\/sleep-divorce-11720012)\n\n[![Modern Bedroom Interior Design]() ![Modern Bedroom Interior Design](https:\/\/www.realsimple.com\/thmb\/vMnrxRka4zVPAtz7-vTJMX9hLgE=\/282x188\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/Scandinavian-sleep-method-2000-88fca61bfd374657ab2efcbbbf94983a.jpg) The Scandinavian Sleep Method Could Save Your Sleep (and Your Marriage)—Here's How It Works](https:\/\/www.realsimple.com\/health\/preventative-health\/sleep\/scandinavian-sleep-method)\n\n[![Person stretching in bed under a blanket morning light shining through]() ![Person stretching in bed under a blanket morning light shining through](https:\/\/www.realsimple.com\/thmb\/QFL7_eHX-Ac539rWl-10sVH3T1Y=\/282x188\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/WhatHappensWhenYouGetEightHoursOfSleep-a1f31ae441ad4f19a06e19717506fbac.jpg) Here’s What Happens When You Actually Get 8 Hours of Sleep Every Night, According to Doctors](https:\/\/www.realsimple.com\/heres-what-happens-when-you-get-8-hours-of-sleep-every-night-11881900)\n\n[![Burning candles with liquid home perfume in glass bottle on rattan table over bed indoor close up over glow lights. Cozy hygge atmosphere. Aromatherapy.]() ![Burning candles with liquid home perfume in glass bottle on rattan table over bed indoor close up over glow lights. Cozy hygge atmosphere. Aromatherapy.](https:\/\/www.realsimple.com\/thmb\/5iAPUypWc9-GJSfoSFR_WIZDt0E=\/282x188\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/scents-for-sleeping-GettyImages-1498206063-a9c15135908340f1925bcac6fabf203d.jpg) 5 Soothing Scents That Will Help You Sleep Better at Night, According to Scientists](https:\/\/www.realsimple.com\/scents-for-sleeping-11711388)\n\n[![woman in bed trying to fall asleep fast]() ![woman in bed trying to fall asleep fast](https:\/\/www.realsimple.com\/thmb\/YYQERv2onG1wkmQYFooxxDTum5s=\/282x188\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/fall-asleep-fast_0-1-74d06af8a9084f7bb6dfbcd278738f4d.jpg) How to Fall Asleep Fast—and Stay Asleep—According to Experts](https:\/\/www.realsimple.com\/how-to-fall-asleep-fast-8701634)\n\n[![REAL SIMPLE SMART SLEEP AWARDS]() ![REAL SIMPLE SMART SLEEP AWARDS](https:\/\/www.realsimple.com\/thmb\/UT7YsRjp7XyTL7aFh9uoO5eQkJM=\/282x188\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/RS0226SLEEP_tout-df0939d42b324986ae04f821dd230111.jpg) Meet the 2026 REAL SIMPLE Smart Sleep Award Winners That Transformed Our Bedtime Routines](https:\/\/www.realsimple.com\/real-simple-sleep-awards-2026-11909306)\n\n[![A glass with a beverage placed on a surface casting a shadow]() ![A glass with a beverage placed on a surface casting a shadow](https:\/\/www.realsimple.com\/thmb\/mDnfnwlzlRYtR9iw9mkxEvuDh18=\/282x188\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/habitsbeforebed-a142dbf6bbc74513996d9eca9ce1b94e.jpg) Your Nighttime Routine Might Be Too Busy—Here’s What to Cut, According to Sleep Experts](https:\/\/www.realsimple.com\/habits-to-avoid-at-night-11879945)\n\n[![pillow in clouds]() ![pillow in clouds](https:\/\/www.realsimple.com\/thmb\/bCxK8pfHcWDOU2mxE6Z-fKeqqzk=\/282x188\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/sleep-deprivided-GettyImages-564949023-a50c978b0f0c40519fe4cf4cdc3da4b2.jpg) 8 Common Signs of Sleep Deprivation You Shouldn't Ignore](https:\/\/www.realsimple.com\/health\/preventative-health\/sleep\/sneaky-signs-sleep-deprived)\n\n[![sleep campaign tout]() ![sleep campaign tout](https:\/\/www.realsimple.com\/thmb\/cgfEFsELAMiZgLXmJtZRmJSvYGA=\/282x188\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/RS_Sleep-Recirc-5969c1cec72b4d70bee79475cada1c34.png) How to Get Your Best Night's Sleep](https:\/\/www.realsimple.com\/get-more-sleep-11720795)\n\n[![sleep-better-GettyImages-1466955108]() ![sleep-better-GettyImages-1466955108](https:\/\/www.realsimple.com\/thmb\/XSbW2bfcJwtZ1NU2R_9JHDeItrA=\/282x188\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/sleep-better-GettyImages-1466955108-d2e0e597c2144e888d42d8e3051ce600.jpg) 8 Daily Habits That Will Help You Sleep Better at Night](https:\/\/www.realsimple.com\/daily-habits-to-sleep-better-at-night-8717838)\n\n[![unmade bed with blue headboard]() ![unmade bed with blue headboard](https:\/\/www.realsimple.com\/thmb\/5YPmMqKbDEk2QMCvpKUWBiAg1Rg=\/282x188\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/winter-insomnia-GettyImages-1362801505-727dc175be2a4f99a182a222db6c0c9a.jpg) Waking Up in the Middle of the Night? It Could Be Winter Insomnia](https:\/\/www.realsimple.com\/winter-insomnia-8782013)\n\n[Real Simple](https:\/\/www.realsimple.com\/)\n\n[Newsletters](https:\/\/www.realsimple.com\/how-much-sleep-you-need-8765879)\n\nFollow Us\n\n- [Home](https:\/\/www.realsimple.com\/home-organizing)\n- [Food](https:\/\/www.realsimple.com\/food-recipes)\n- [Shopping](https:\/\/www.realsimple.com\/shopping-6375141)\n- [Style and Beauty](https:\/\/www.realsimple.com\/beauty-fashion)\n- [Health](https:\/\/www.realsimple.com\/health)\n- [Holidays](https:\/\/www.realsimple.com\/holidays-entertaining)\n- [Life](https:\/\/www.realsimple.com\/work-life)\n- [News](https:\/\/www.realsimple.com\/news)\n\n- [About Us](https:\/\/www.realsimple.com\/about-us-5546943)\n- [Subscribe](https:\/\/www.magazines.com\/real-simple-magazine.html)\n- [Editorial Guidelines](https:\/\/www.realsimple.com\/about-us-5546943#toc-editorial-guidelines)\n- [Product Testing Guidelines](https:\/\/www.realsimple.com\/real-simple-commerce-guidelines-and-mission-6281697)\n- [Privacy Policy](https:\/\/www.people.inc\/brands-privacy)\n- [Terms of Service](https:\/\/www.people.inc\/brands-termsofservice)\n- [Advertise](https:\/\/www.people.inc\/advertising)\n- [Careers](https:\/\/www.people.inc\/careers)\n- [Contact Us](https:\/\/www.realsimple.com\/about-us-5546943#toc-contacts)\n\nReal Simple is part of the [People Inc.](https:\/\/www.people.inc\/) publishing family.\n\nMyrecipes Dialog\n\nNewsletter Sign Up\n\nNewsletter Sign Up","attrs_readable_markdown":"Here's how much sleep you really need, based on your age.\n\nBy\n\n[Maggie Seaver](https:\/\/www.realsimple.com\/author\/maggie-seaver)\n\n![Maggie Seaver ](https:\/\/www.realsimple.com\/thmb\/-X17oLKH6jwwkrmbu7WfhNUb1Jo=\/200x200\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/maggie-seaver-ecdd97e9aebd433088c58836fd9ca6b0.jpg)\n\nMaggie Seaver is the digital health and wellness editor at Real Simple, with seven years of experience writing lifestyle and wellness content. She spends her days writing and editing stories about sleep, mental health, fitness, preventive health, nutrition, personal development, relationships, healthy habits, and beyond. She loves demystifying complicated health topics, debunking wellness fads, and sharing practical, science-backed solutions for healthy living.\n\nUpdated on December 08, 2025\n\nCredit:\n\nLiudmila Evsegneeva\/Getty Images\n\n### Key Takeaways\n- Sleep is crucial for health; adults generally need 7-9 hours each night for optimal functioning.\n- Sleep requirements vary with age; for instance, newborns need up to 17 hours, while older adults only need 7-8 hours.\n- Consistently missing sleep can lead to serious health issues, so consult a doctor if you struggle with sleep deprivation.\n\nSleep is more than a sweet escape or rare reward to enjoy when you’re lucky. Sufficient sleep is vital to nearly every facet of overall health. While sleep still remains a relatively mysterious phenomenon, we do know it’s essential for letting the brain and body reset and recharge. While you sleep, you’re storing and wiping information, encoding memories, regenerating cells, and regulating complex systems, like your [metabolism and immune system](https:\/\/www.realsimple.com\/sleep-habits-to-live-to-100-8752455). Needless to say, you need sleep—and probably more of it than you already get.\n\nIn order to experience optimal sleep benefits, you need to get the right amount of sleep—every night. How much sleep you need naturally depends on several individual factors, including your age, health, and even DNA. However, [The National Sleep Foundation](https:\/\/www.sleepfoundation.org\/articles\/how-much-sleep-do-we-really-need) does provide updated recommended sleep duration guidelines by age, based on [scientific research](https:\/\/www.sleephealthjournal.org\/article\/S2352-7218%2815%2900015-7\/fulltext) conducted over two years by 18 different sleep experts. And it’s here for you the next time you’re wondering, *How much sleep do I need?*\n\n## The Science Behind Sleep\nThe sleep rumors are true: The average adult, between 18 and 64 years old, should get seven to nine hours of sleep every night. This number of hours allows your brain and body to get as much REM sleep and deep sleep as they need (you need multiple cycles of both types of sleep for an adequate nightly slumber). On the other hand, newborns and infants need the most sleep to optimize postnatal development: 14 to 17 hours, and 12 to 15 hours, respectively. There’s also scientific validation for teenagers’ notorious sleep habits: 14- to 17-year-olds need a solid 8 to 10 hours (so let them sleep!). And starting around age 65, older adults only require seven to eight hours, not quite as much as they may [need in early and middle adulthood](https:\/\/www.realsimple.com\/how-to-fall-asleep-fast-8701634).\n\nSome adults find seven hours to be a perfectly sufficient amount of sleep, while others need closer to nine (maybe even 10) hours to feel fully rested. And remember, while some people may pride themselves on being able to function on five or six hours of sleep, the truth is, [they’re likely severely sleep deprived](https:\/\/www.realsimple.com\/health\/preventative-health\/sleep\/sneaky-signs-sleep-deprived) without realizing it. The effects of insufficient sleep can be immediate, but they can also accumulate gradually and manifest in myriad health problems.\n\n## How Much Sleep Do You Need?\nIn his book *Why We Sleep: Unlocking the Power of Sleep and Dreams*, Matthew Walker, PhD, a professor and director of UC Berkeley’s Sleep and Neuroimaging Lab, describes scientific research that concludes sleeping for only six hours a night for 10 days can make you as impaired as someone who has been awake for 24 consecutive hours. One recent sleep study finds that losing just 16 minutes of sleep can be detrimental to [alertness and concentration](https:\/\/www.realsimple.com\/what-is-good-sleep-hygiene-8730838)—so imagine what regularly losing hours of sleep could do.\n\nHere’s a full breakdown of how much sleep you need at every age, straight from The National Sleep Foundation's research. When in doubt, adults should aim for seven to nine hours to stay as happy and healthy as possible. But speak to your doctor or a sleep specialist if you're worried that [chronic sleep deprivation](https:\/\/www.realsimple.com\/habits-to-sleep-better-8710591) or other sleep disorders are preventing you from getting the sleep you need and deserve.\n\n- Newborns (0 to 3 months): 4 to 17 hours each day\n- Infants (4 to 11 months): 12 to 15 hours\n- Toddlers (1 to 2 years): 11 to 14 hours\n- Preschoolers (3 to 5): 10 to 13 hours\n- School age children (6 to 13): 9 to 11 hours\n- Teenagers (14 to 17): 8 to 10 hours\n- Younger adults (18 to 25): 7 to 9 hours\n- Adults (26 to 64): 7 to 9 hours\n- Older adults (65 and older): 7 to 8 hours\n\nWas this page helpful?\n\nTell us why\\!","meta_canonical":null}

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Boilerpipe Text	Here's how much sleep you really need, based on your age. By Maggie Seaver Maggie Seaver is the digital health and wellness editor at Real Simple, with seven years of experience writing lifestyle and wellness content. She spends her days writing and editing stories about sleep, mental health, fitness, preventive health, nutrition, personal development, relationships, healthy habits, and beyond. She loves demystifying complicated health topics, debunking wellness fads, and sharing practical, science-backed solutions for healthy living. Updated on December 08, 2025 Credit: Liudmila Evsegneeva/Getty Images Key Takeaways Sleep is crucial for health; adults generally need 7-9 hours each night for optimal functioning. Sleep requirements vary with age; for instance, newborns need up to 17 hours, while older adults only need 7-8 hours. Consistently missing sleep can lead to serious health issues, so consult a doctor if you struggle with sleep deprivation. Sleep is more than a sweet escape or rare reward to enjoy when you’re lucky. Sufficient sleep is vital to nearly every facet of overall health. While sleep still remains a relatively mysterious phenomenon, we do know it’s essential for letting the brain and body reset and recharge. While you sleep, you’re storing and wiping information, encoding memories, regenerating cells, and regulating complex systems, like your metabolism and immune system . Needless to say, you need sleep—and probably more of it than you already get. In order to experience optimal sleep benefits, you need to get the right amount of sleep—every night. How much sleep you need naturally depends on several individual factors, including your age, health, and even DNA. However, The National Sleep Foundation does provide updated recommended sleep duration guidelines by age, based on scientific research conducted over two years by 18 different sleep experts. And it’s here for you the next time you’re wondering, How much sleep do I need? The Science Behind Sleep The sleep rumors are true: The average adult, between 18 and 64 years old, should get seven to nine hours of sleep every night. This number of hours allows your brain and body to get as much REM sleep and deep sleep as they need (you need multiple cycles of both types of sleep for an adequate nightly slumber). On the other hand, newborns and infants need the most sleep to optimize postnatal development: 14 to 17 hours, and 12 to 15 hours, respectively. There’s also scientific validation for teenagers’ notorious sleep habits: 14- to 17-year-olds need a solid 8 to 10 hours (so let them sleep!). And starting around age 65, older adults only require seven to eight hours, not quite as much as they may need in early and middle adulthood . Some adults find seven hours to be a perfectly sufficient amount of sleep, while others need closer to nine (maybe even 10) hours to feel fully rested. And remember, while some people may pride themselves on being able to function on five or six hours of sleep, the truth is, they’re likely severely sleep deprived without realizing it. The effects of insufficient sleep can be immediate, but they can also accumulate gradually and manifest in myriad health problems. How Much Sleep Do You Need? In his book Why We Sleep: Unlocking the Power of Sleep and Dreams , Matthew Walker, PhD, a professor and director of UC Berkeley’s Sleep and Neuroimaging Lab, describes scientific research that concludes sleeping for only six hours a night for 10 days can make you as impaired as someone who has been awake for 24 consecutive hours. One recent sleep study finds that losing just 16 minutes of sleep can be detrimental to alertness and concentration —so imagine what regularly losing hours of sleep could do. Here’s a full breakdown of how much sleep you need at every age, straight from The National Sleep Foundation's research. When in doubt, adults should aim for seven to nine hours to stay as happy and healthy as possible. But speak to your doctor or a sleep specialist if you're worried that chronic sleep deprivation or other sleep disorders are preventing you from getting the sleep you need and deserve. Newborns (0 to 3 months): 4 to 17 hours each day Infants (4 to 11 months): 12 to 15 hours Toddlers (1 to 2 years): 11 to 14 hours Preschoolers (3 to 5): 10 to 13 hours School age children (6 to 13): 9 to 11 hours Teenagers (14 to 17): 8 to 10 hours Younger adults (18 to 25): 7 to 9 hours Adults (26 to 64): 7 to 9 hours Older adults (65 and older): 7 to 8 hours Was this page helpful? Tell us why!
Markdown	[Skip to content](https://www.realsimple.com/how-much-sleep-you-need-8765879#main) [Real Simple](https://www.realsimple.com/) - Please fill out this field. - Magazine - [Subscribe](https://www.realsimple.com/how-much-sleep-you-need-8765879) - [Manage Your Subscription](https://w1.buysub.com/pubs/MR/RSP/Login_No_API.jsp?cds_page_id=226570&cds_mag_code=RSP&id=1658963908658&lsid=22081818286077739&vid=1) - [Give a Gift Subscription](https://www.magazines.com/real-simple-magazine.html?gift=true&utm_source=realsimple.com&utm_medium=owned&utm_campaign=i208rsr5w2925) - [Get Help](https://www.realsimple.com/about-us-5546943#toc-contacts) - [Newsletters](https://www.realsimple.com/how-much-sleep-you-need-8765879) - [Sweepstakes](https://www.realsimple.com/sweepstakes) - [Subscribe](https://www.realsimple.com/how-much-sleep-you-need-8765879) - [My Saves](https://www.myrecipes.com/) Please fill out this field. - [Home](https://www.realsimple.com/home-organizing) Home - [Cleaning](https://www.realsimple.com/home-organizing/cleaning) - 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By [Maggie Seaver](https://www.realsimple.com/author/maggie-seaver) ![Maggie Seaver ]() ![Maggie Seaver ](https://www.realsimple.com/thmb/-X17oLKH6jwwkrmbu7WfhNUb1Jo=/200x200/filters:no_upscale\(\):max_bytes\(150000\):strip_icc\(\)/maggie-seaver-ecdd97e9aebd433088c58836fd9ca6b0.jpg) [Maggie Seaver](https://www.realsimple.com/author/maggie-seaver) Maggie Seaver is the digital health and wellness editor at Real Simple, with seven years of experience writing lifestyle and wellness content. She spends her days writing and editing stories about sleep, mental health, fitness, preventive health, nutrition, personal development, relationships, healthy habits, and beyond. She loves demystifying complicated health topics, debunking wellness fads, and sharing practical, science-backed solutions for healthy living. [Real Simple's Editorial Guidelines](https://www.realsimple.com/about-us-5546943#toc-editorial-guidelines) Updated on December 08, 2025 Close ![Apartments design. Part of bedroom. Mixed Japanese and Scandinavia style.](https://www.realsimple.com/thmb/elQe6jrUdCcN0YtAt3-yDarwrU4=/1500x0/filters:no_upscale\(\):max_bytes\(150000\):strip_icc\(\)/how-much-sleep-every-night-GettyImages-1441461206-4c51141d3f9f4a3f88b43b12c2b89666.jpg) ![Apartments design. Part of bedroom. Mixed Japanese and Scandinavia style.](https://www.realsimple.com/thmb/elQe6jrUdCcN0YtAt3-yDarwrU4=/1500x0/filters:no_upscale\(\):max_bytes\(150000\):strip_icc\(\)/how-much-sleep-every-night-GettyImages-1441461206-4c51141d3f9f4a3f88b43b12c2b89666.jpg) Credit: Liudmila Evsegneeva/Getty Images ### Key Takeaways - Sleep is crucial for health; adults generally need 7-9 hours each night for optimal functioning. - Sleep requirements vary with age; for instance, newborns need up to 17 hours, while older adults only need 7-8 hours. - Consistently missing sleep can lead to serious health issues, so consult a doctor if you struggle with sleep deprivation. Sleep is more than a sweet escape or rare reward to enjoy when you’re lucky. Sufficient sleep is vital to nearly every facet of overall health. While sleep still remains a relatively mysterious phenomenon, we do know it’s essential for letting the brain and body reset and recharge. While you sleep, you’re storing and wiping information, encoding memories, regenerating cells, and regulating complex systems, like your [metabolism and immune system](https://www.realsimple.com/sleep-habits-to-live-to-100-8752455). Needless to say, you need sleep—and probably more of it than you already get. In order to experience optimal sleep benefits, you need to get the right amount of sleep—every night. How much sleep you need naturally depends on several individual factors, including your age, health, and even DNA. However, [The National Sleep Foundation](https://www.sleepfoundation.org/articles/how-much-sleep-do-we-really-need) does provide updated recommended sleep duration guidelines by age, based on [scientific research](https://www.sleephealthjournal.org/article/S2352-7218%2815%2900015-7/fulltext) conducted over two years by 18 different sleep experts. And it’s here for you the next time you’re wondering, How much sleep do I need? ## The Science Behind Sleep The sleep rumors are true: The average adult, between 18 and 64 years old, should get seven to nine hours of sleep every night. This number of hours allows your brain and body to get as much REM sleep and deep sleep as they need (you need multiple cycles of both types of sleep for an adequate nightly slumber). On the other hand, newborns and infants need the most sleep to optimize postnatal development: 14 to 17 hours, and 12 to 15 hours, respectively. There’s also scientific validation for teenagers’ notorious sleep habits: 14- to 17-year-olds need a solid 8 to 10 hours (so let them sleep!). And starting around age 65, older adults only require seven to eight hours, not quite as much as they may [need in early and middle adulthood](https://www.realsimple.com/how-to-fall-asleep-fast-8701634). Some adults find seven hours to be a perfectly sufficient amount of sleep, while others need closer to nine (maybe even 10) hours to feel fully rested. And remember, while some people may pride themselves on being able to function on five or six hours of sleep, the truth is, [they’re likely severely sleep deprived](https://www.realsimple.com/health/preventative-health/sleep/sneaky-signs-sleep-deprived) without realizing it. The effects of insufficient sleep can be immediate, but they can also accumulate gradually and manifest in myriad health problems. ## How Much Sleep Do You Need? In his book Why We Sleep: Unlocking the Power of Sleep and Dreams, Matthew Walker, PhD, a professor and director of UC Berkeley’s Sleep and Neuroimaging Lab, describes scientific research that concludes sleeping for only six hours a night for 10 days can make you as impaired as someone who has been awake for 24 consecutive hours. One recent sleep study finds that losing just 16 minutes of sleep can be detrimental to [alertness and concentration](https://www.realsimple.com/what-is-good-sleep-hygiene-8730838)—so imagine what regularly losing hours of sleep could do. Here’s a full breakdown of how much sleep you need at every age, straight from The National Sleep Foundation's research. When in doubt, adults should aim for seven to nine hours to stay as happy and healthy as possible. But speak to your doctor or a sleep specialist if you're worried that [chronic sleep deprivation](https://www.realsimple.com/habits-to-sleep-better-8710591) or other sleep disorders are preventing you from getting the sleep you need and deserve. - Newborns (0 to 3 months): 4 to 17 hours each day - Infants (4 to 11 months): 12 to 15 hours - Toddlers (1 to 2 years): 11 to 14 hours - Preschoolers (3 to 5): 10 to 13 hours - School age children (6 to 13): 9 to 11 hours - Teenagers (14 to 17): 8 to 10 hours - Younger adults (18 to 25): 7 to 9 hours - Adults (26 to 64): 7 to 9 hours - Older adults (65 and older): 7 to 8 hours Explore more: - [Health](https://www.realsimple.com/health) - [Wellness](https://www.realsimple.com/wellness-6375161) - [Sleep](https://www.realsimple.com/health/preventative-health/sleep) Was this page helpful? Thanks for your feedback\! Tell us why\! 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Readable Markdown	Here's how much sleep you really need, based on your age. By [Maggie Seaver](https://www.realsimple.com/author/maggie-seaver) ![Maggie Seaver ](https://www.realsimple.com/thmb/-X17oLKH6jwwkrmbu7WfhNUb1Jo=/200x200/filters:no_upscale\(\):max_bytes\(150000\):strip_icc\(\)/maggie-seaver-ecdd97e9aebd433088c58836fd9ca6b0.jpg) Maggie Seaver is the digital health and wellness editor at Real Simple, with seven years of experience writing lifestyle and wellness content. She spends her days writing and editing stories about sleep, mental health, fitness, preventive health, nutrition, personal development, relationships, healthy habits, and beyond. She loves demystifying complicated health topics, debunking wellness fads, and sharing practical, science-backed solutions for healthy living. Updated on December 08, 2025 Credit: Liudmila Evsegneeva/Getty Images ### Key Takeaways - Sleep is crucial for health; adults generally need 7-9 hours each night for optimal functioning. - Sleep requirements vary with age; for instance, newborns need up to 17 hours, while older adults only need 7-8 hours. - Consistently missing sleep can lead to serious health issues, so consult a doctor if you struggle with sleep deprivation. Sleep is more than a sweet escape or rare reward to enjoy when you’re lucky. Sufficient sleep is vital to nearly every facet of overall health. While sleep still remains a relatively mysterious phenomenon, we do know it’s essential for letting the brain and body reset and recharge. While you sleep, you’re storing and wiping information, encoding memories, regenerating cells, and regulating complex systems, like your [metabolism and immune system](https://www.realsimple.com/sleep-habits-to-live-to-100-8752455). Needless to say, you need sleep—and probably more of it than you already get. In order to experience optimal sleep benefits, you need to get the right amount of sleep—every night. How much sleep you need naturally depends on several individual factors, including your age, health, and even DNA. However, [The National Sleep Foundation](https://www.sleepfoundation.org/articles/how-much-sleep-do-we-really-need) does provide updated recommended sleep duration guidelines by age, based on [scientific research](https://www.sleephealthjournal.org/article/S2352-7218%2815%2900015-7/fulltext) conducted over two years by 18 different sleep experts. And it’s here for you the next time you’re wondering, How much sleep do I need? ## The Science Behind Sleep The sleep rumors are true: The average adult, between 18 and 64 years old, should get seven to nine hours of sleep every night. This number of hours allows your brain and body to get as much REM sleep and deep sleep as they need (you need multiple cycles of both types of sleep for an adequate nightly slumber). On the other hand, newborns and infants need the most sleep to optimize postnatal development: 14 to 17 hours, and 12 to 15 hours, respectively. There’s also scientific validation for teenagers’ notorious sleep habits: 14- to 17-year-olds need a solid 8 to 10 hours (so let them sleep!). And starting around age 65, older adults only require seven to eight hours, not quite as much as they may [need in early and middle adulthood](https://www.realsimple.com/how-to-fall-asleep-fast-8701634). Some adults find seven hours to be a perfectly sufficient amount of sleep, while others need closer to nine (maybe even 10) hours to feel fully rested. And remember, while some people may pride themselves on being able to function on five or six hours of sleep, the truth is, [they’re likely severely sleep deprived](https://www.realsimple.com/health/preventative-health/sleep/sneaky-signs-sleep-deprived) without realizing it. The effects of insufficient sleep can be immediate, but they can also accumulate gradually and manifest in myriad health problems. ## How Much Sleep Do You Need? In his book Why We Sleep: Unlocking the Power of Sleep and Dreams, Matthew Walker, PhD, a professor and director of UC Berkeley’s Sleep and Neuroimaging Lab, describes scientific research that concludes sleeping for only six hours a night for 10 days can make you as impaired as someone who has been awake for 24 consecutive hours. One recent sleep study finds that losing just 16 minutes of sleep can be detrimental to [alertness and concentration](https://www.realsimple.com/what-is-good-sleep-hygiene-8730838)—so imagine what regularly losing hours of sleep could do. Here’s a full breakdown of how much sleep you need at every age, straight from The National Sleep Foundation's research. When in doubt, adults should aim for seven to nine hours to stay as happy and healthy as possible. But speak to your doctor or a sleep specialist if you're worried that [chronic sleep deprivation](https://www.realsimple.com/habits-to-sleep-better-8710591) or other sleep disorders are preventing you from getting the sleep you need and deserve. - Newborns (0 to 3 months): 4 to 17 hours each day - Infants (4 to 11 months): 12 to 15 hours - Toddlers (1 to 2 years): 11 to 14 hours - Preschoolers (3 to 5): 10 to 13 hours - School age children (6 to 13): 9 to 11 hours - Teenagers (14 to 17): 8 to 10 hours - Younger adults (18 to 25): 7 to 9 hours - Adults (26 to 64): 7 to 9 hours - Older adults (65 and older): 7 to 8 hours Was this page helpful? Tell us why\!
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