+ Site Statistics
References:
54,258,434
Abstracts:
29,560,870
PMIDs:
28,072,757
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

How much sleep do we need?



How much sleep do we need?



Sleep Medicine Reviews 5(2): 155-179



There is increasing concern for sleeplessness-related risks in modern society. Some recent epidemiological data seem to support the view that many segments of the adult population have chronically inadequate sleep. On the other hand, some experts have claimed that our core, basic amount of sleep is around 6 h per night, and that the rest of our sleep can be easily curtailed, being unnecessary to fulfill any sleep need. However, experimental data on the effects of both acute and cumulative partial sleep deprivation (PSD) consistently point out that sleep restriction has substantial negative effects on sleepiness, motor and cognitive performance and mood, as well as on some metabolic, hormonal and immunological variables. As chronic PSD may have serious long-term adverse health effects, it should be avoided in the general population. In the short-term, the effects of sleep curtailment seem to accumulate linearly, while the effects of long-term PSD should be further investigated, as the few available studies are flawed by methodological weaknesses. On the other hand, there is evidence that extending sleep by 2-3 h beyond the norm produces only marginal benefits for an average individual. Finally, it is underlined that, as large individual differences do exist in the need for sleep, the search for the sleep need may be vain. A somnotypology, taking into account age, gender and the position in both the sleep-alert and the morningness-eveningness continuum, should help in the search for the actual individual sleep need. 2001 Harcourt Publishers Ltd

(PDF emailed within 0-6 h: $19.90)

Accession: 046280301

Download citation: RISBibTeXText

PMID: 12531052

DOI: 10.1053/smrv.2000.0138


Related references

Suicidal feelings are related to sleep phase, sleep quality, and sleep quantity: A study on the relationship between sleep and suicide prevention by using 3DSS (3 Dimensional Sleep Scale). Sleep Medicine 16: S227-S228, 2015

Sleep in lonely heroin-dependent patients receiving methadone maintenance treatment: longer sleep latency, shorter sleep duration, lower sleep efficiency, and poorer sleep quality. Oncotarget 8(51): 89278-89283, 2017

Total sleep time obtained from actigraphy versus sleep logs in an academic sleep center and impact on further sleep testing. Nature and Science of Sleep 5: 125-131, 2013

Temporal distributions of delta wave sleep and rem sleep during recovery sleep after 12-h forced wakefulness in dogs; similarity to human sleep. Neuroscience Letters 10(3): 329-334, 1978

A Review of Sleep Information for Teens: Health Tips about Adolescent Sleep Requirements, Sleep Disorders, and the Effects of Sleep Deprivation (1st ed.). Issues in Mental Health Nursing 30(9): 593-593, 2009

Sleep profile and sleep periodicity of more than 24 hours in humans under the influence of a butyrophenone derivative. 1. Sleep correction in subjects with oligosymptomatic sleep disorders. Arzneimittel-Forschung 29(3): 574-579, 1979

Sleep in the cat a parallel increase of deep slow wave sleep and rapid eye movement sleep following total sleep deprivation. Acta Physiologica Scandinavica 82(3): 1A, 1971

Sleep habits and sleep complaints in Austria: current self-reported data on sleep behaviour, sleep disturbances and their treatment. Acta Neurologica Scandinavica 122(6): 398-403, 2011

Contribution of the circadian pacemaker and the sleep homeostat to sleep propensity, sleep structure, electroencephalographic slow waves, and sleep spindle activity in humans. Journal of Neuroscience 15(5 Pt 1): 3526-3538, 1995

Sleep in overweight adolescents: shorter sleep, poorer sleep quality, sleepiness, and sleep-disordered breathing. Journal of Pediatric Psychology 32(1): 69-79, 2006

Too little sleep and too much sleep among older adults: Associations with self-reported sleep medication use, sleep quality and healthcare utilization. Geriatrics and Gerontology International 17(4): 545-553, 2016

European congress on sleep research no. 4. sleep 1978 sleep onset pathology of child sleep and coma hypophyseal secretions and sleep idiopathic hyper somnia neuro physiology pharmacology methodology psychology psychiatry tirgu mures romania september 11 15 1978. Popoviciu, L , B Asgian And G Badiu (Ed ) European Congress on Sleep Research, No 4 Sleep 1978: Sleep Onset, Pathology Of Child, Sleep And Coma, Hypophyseal Secretions And Sleep, Idiopathic Hypersomnia, Neurophysiology, Pharmacology, Methodology, Psychology, Psychiatry; Tirgu-Mures, Romania, Sept 11-15, 1978 Xv+794p S Karger: Basel, Switzerland; New York, N Y , Usa Illus Xv+794p, 1980

Rapid Eye Movement Sleep, Sleep Continuity and Slow Wave Sleep as Predictors of Cognition, Mood, and Subjective Sleep Quality in Healthy Men and Women, Aged 20-84 Years. Frontiers in Psychiatry 9: 255, 2018

The effectiveness of sleep education programs in improving sleep hygiene knowledge, sleep behavior practices and/or sleep quality of college students: a systematic review protocol. Jbi Database of Systematic Reviews and Implementation Reports 13(9): 72-83, 2015

Sleep in the cat: a parallel increase of deep slow wave sleep and REM sleep following total sleep deprivation. Acta Physiologica Scandinavica 82(3): 1a, 1971