File:Domenico_Fetti_-_Sleeping_Girl_-_WGA7863.jpg · Wikimedia Commons · See Wikimedia Commons

EntityQ35831· pop 176· linked from 842 articles

sleep

Also known as sleeping, rest

Sleep is a state of reduced mental and physical activity in which consciousness is altered and certain sensory activity is inhibited. During sleep, there is a marked decrease in muscle activity and interactions with the surrounding environment. While sleep differs from wakefulness in terms of the ability to react to stimuli, it still involves active brain patterns, making it more reactive than a coma or disorders of consciousness.

AI overview

Sleep is a state in which your mind and body reduce their activity, your awareness changes, and you become less responsive to your surroundings, though your brain remains actively engaged. This regular period of reduced activity is distinct from wakefulness because of your decreased ability to react to stimuli, yet it involves more active brain function than a coma.

AI-generated from the Wikipedia summary — may contain errors.

Key facts

Body process.name: Sleep
Body process.image: Domenico Fetti - Sleeping Girl - WGA7863.jpg
Body process.caption: Sleeping Girl, Domenico Fetti,
Body process.biological system: Nervous system

via Wikipedia infobox

Research

359,562 papers

Sleep physiology, pathophysiology, and sleep hygiene.ReviewProgress in cardiovascular diseases · 2023Baranwal N, Yu PK, Siegel NSDOI: 10.1016/j.pcad.2023.02.005
Sleep and human cognitive development.ReviewSleep medicine reviews · 2021Mason GM, Lokhandwala S, Riggins T et al.DOI: 10.1016/j.smrv.2021.101472
About sleep's role in memory.ReviewPhysiological reviews · 2013Rasch B, Born JDOI: 10.1152/physrev.00032.2012
The translational neuroscience of sleep: A contextual framework.ReviewScience (New York, N.Y.) · 2021Grandner MA, Fernandez FXDOI: 10.1126/science.abj8188
The impact of sleep deprivation on declarative memory.ReviewProgress in brain research · 2019Cousins JN, Fernández GDOI: 10.1016/bs.pbr.2019.01.007
Relations between sleep patterns early in life and brain development: A review.ReviewDevelopmental cognitive neuroscience · 2022Lokhandwala S, Spencer RMCDOI: 10.1016/j.dcn.2022.101130
Sleep's contribution to memory formation.ReviewPhysiological reviews · 2026Lutz ND, Harkotte M, Born JDOI: 10.1152/physrev.00054.2024
Effects of sleep on memory for conditioned fear and fear extinction.ReviewPsychological bulletin · 2015Pace-Schott EF, Germain A, Milad MRDOI: 10.1037/bul0000014

via PubMed

Wikidata facts

Image: Lion and lioness sleeping.JPG

Show 5 more facts

Unicode character: 😴
Commons category: Sleeping
exact match: purl.obolibrary.org/obo/HP_0002329
NCI Thesaurus ID: C73425
social media followers: 433080

Sources (3)

via Wikidata · CC0

~48 min read

Article

37 sections

Contents

Physiology
Brain waves in sleep
Non-REM and REM sleep
Awakening
Timing
Circadian clock
Process S
Social timing
Distribution
Naps
Genetics
Genes for short sleep duration
Quality
Ideal duration
Children
Recommended duration
Functions
Restoration
Memory processing
Dreaming
Disorders
Insomnia
Sleep health
Sleep duration and quality
Sleep hygiene
Sleep and musculoskeletal health
Drugs and diet
Diet
In culture
Anthropology
In mythology and literature
In studies on consciousness and philosophy
In art
See also
References
Further reading
External links

Sleep occurs in repeating periods, during which the body alternates between two distinct modes: rapid eye movement sleep (REM) and non-REM sleep. Although REM stands for "rapid eye movement", this mode of sleep has many other aspects, including virtual paralysis of the body. Dreams are a succession of images, ideas, emotions, and sensations that usually occur involuntarily in the mind during certain stages of sleep.