🕷️ Crawler Inspector

You might also like... × [Study identifies seven distinct types of hyperarousal across mental disorders](https://www.news-medical.net/news/20260312/Study-identifies-seven-distinct-types-of-hyperarousal-across-mental-disorders.aspx "Study identifies seven distinct types of hyperarousal across mental disorders")

Sleep-onset insomnia may be described as the inability to sleep when one is ready to, at the beginning of the night in most people. It may be temporary and acute, or chronic. It could manifest as daytime fatigue and sleepiness, loss of concentration, and irritability.  The severity of the symptoms depend upon the duration of insomnia. Prolonged sleep-onset insomnia may cause severe sleep deprivation with correspondingly major symptoms. These may include psychological or psychiatric symptoms which may have a significant impact upon the quality of life, as well as other metabolic disorders. In most cases, individuals with sleep-onset insomnia do fall asleep after some time. However, the increased duration of sleep onset latency, which is the period taken for the onset of sleep, may become a major irritant and even cause self-fulfilling prophecies of insomnia. The total sleep time is also reduced if there is a significant prolongation of the sleep onset period. ## Symptoms Sleep onset insomnia may cause a variety of symptoms such as: - Mood swings including depressive feelings - Irritability - Poor concentration - Feeling of persistent fatigue - Loss of libido - Anxiety and depression - Loss of coordination and mechanical dexterity ## Causes Sleep onset insomnia or acute onset may be traced to various triggers such as sudden changes in lifestyle, the onset of certain short-term stressors, or poor sleep hygiene. This may include a loud or noisy environment, intake of coffee or a large meal shortly before bedtime, or lack of adequate exercise. Using a computer, television, or smartphone in the bedroom may trigger incongruous stimuli which hinder sleep onset. Another common factor is anxiety - up to 90 percent of anxious or depressed individuals have some type of sleep disorder, including sleep onset insomnia. This itself causes more anxiety and fear of remaining awake to build up, which further prolongs the sleep onset latency. [](https://www.news-medical.net/industry-focus/Industry-Focus-Medical-Device?src=content-embed)Industry Focus - Medical Device eBook Compilation of the top interviews, articles, and news in the last year. [Download the latest edition](https://www.news-medical.net/industry-focus/Industry-Focus-Medical-Device?src=content-embed) Behavioral disturbances may also contribute to the problem. Anxious or worried people often carry their worries to bed. Others may have rather rigid expectations of sleeping for a fixed number of hours and be worried if they wake up earlier, even if they feel fresh. Emotional and mental fixations upon sleep deprivation has been suggested to cause persistent hyperarousal and anxiety at night, especially around bedtime, which further hinders sleep onset. Such an individual may try to quieten the racing thoughts and emotions that prevent sleep, only to make it more difficult to sleep after the inevitable failure to do so. This may breed another cycle of anxiety and insomnia. Some medical or psychiatric disorders may also result in sleep-onset insomnia. These include restless legs syndrome, periodic limb movements in sleep, obstructive sleep apnea-hypopnea syndrome, congestive cardiac failure, and other circadian disorders which disturb the rhythm of the sleep-wake routine. The cognitive component is equal in importance to the physical, because the subjective feelings of daytime exhaustion, impaired memory, and lack of refreshing sleep, are often not borne out by objective testing. In other words, patients are often more worried about the hypothetical lack of a proper duration of sleep than by their actual physical or mental symptoms. It follows that cognitive behavioral therapy is very successful in countering this misperception and promoting recovery from insomnia. ## References 1. <https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2924526/> 2. <http://www.e-jsm.org/journal/view.php?number=97> ## Further Reading - [All Insomnia Content](https://www.news-medical.net/condition/Insomnia) - [Insomnia - What is Insomnia?](https://www.news-medical.net/health/What-is-Insomnia.aspx) - [Insomnia Causes](https://www.news-medical.net/health/Insomnia-Causes.aspx) - [Insomnia Symptoms](https://www.news-medical.net/health/Insomnia-Symptoms.aspx) - [Insomnia Treatment](https://www.news-medical.net/health/Insomnia-Treatment.aspx) Last Updated: Jun 11, 2019 Currently rated 3.4 by 12 people  Written by ### [Dr. Liji Thomas](https://www.news-medical.net/medical/authors/liji-thomas) Dr. Liji Thomas is an OB-GYN, who graduated from the Government Medical College, University of Calicut, Kerala, in 2001. Liji practiced as a full-time consultant in obstetrics/gynecology in a private hospital for a few years following her graduation. She has counseled hundreds of patients facing issues from pregnancy-related problems and infertility, and has been in charge of over 2,000 deliveries, striving always to achieve a normal delivery rather than operative. ## [Citations](https://www.news-medical.net/health/Causes-of-Sleep-Onset-Insomnia.aspx) Please use one of the following formats to cite this article in your essay, paper or report: - APA Thomas, Liji. (2019, June 11). Causes of Sleep-Onset Insomnia. News-Medical. Retrieved on April 21, 2026 from https://www.news-medical.net/health/Causes-of-Sleep-Onset-Insomnia.aspx. - MLA Thomas, Liji. "Causes of Sleep-Onset Insomnia". *News-Medical*. 21 April 2026. \<https://www.news-medical.net/health/Causes-of-Sleep-Onset-Insomnia.aspx\>. - Chicago Thomas, Liji. "Causes of Sleep-Onset Insomnia". News-Medical. https://www.news-medical.net/health/Causes-of-Sleep-Onset-Insomnia.aspx. (accessed April 21, 2026). - Harvard Thomas, Liji. 2019. *Causes of Sleep-Onset Insomnia*. News-Medical, viewed 21 April 2026, https://www.news-medical.net/health/Causes-of-Sleep-Onset-Insomnia.aspx. ## Suggested Reading [](https://www.news-medical.net/news/20260421/Ibuprofen-shown-to-improve-cognitive-function-in-patients-undergoing-chemotherapy.aspx) [](https://www.news-medical.net/news/20260122/Short-naps-refresh-the-brain-for-better-learning.aspx) [](https://www.news-medical.net/news/20260204/Study-finds-ADHD-symptoms-linked-to-higher-internet-addiction-risk-in-college-students.aspx) [](https://www.news-medical.net/news/20260325/Sleep-apps-help-you-track-sleep-but-can-they-also-increase-anxiety.aspx) [](https://www.news-medical.net/news/20260312/Japanese-study-evaluates-sleep-architecture-and-safety-of-common-insomnia-drugs.aspx) [](https://www.news-medical.net/news/20260223/Frontline-healthcare-workers-experienced-highest-insomnia-rates-during-and-after-pandemic.aspx) [](https://www.news-medical.net/news/20260302/High-dose-curcumin-fails-to-produce-lasting-gut-microbiome-changes-in-IBD-patients.aspx) [](https://www.news-medical.net/news/20260305/High-use-of-anticholinergic-drugs-linked-to-increased-cardiovascular-disease-risk.aspx) Terms While we only use edited and approved content for Azthena answers, it may on occasions provide incorrect responses. Please confirm any data provided with the related suppliers or authors. We do not provide medical advice, if you search for medical information you must always consult a medical professional before acting on any information provided. Your questions, but not your email details will be shared with OpenAI and retained for 30 days in accordance with their privacy principles. Please do not ask questions that use sensitive or confidential information. Read the full [Terms & Conditions](https://www.news-medical.net/medical/terms).