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1. Dictionary

   sleep

   /sliːp/

   noun

   • 1. a condition of body and mind that typically recurs for several hours every night, in which the eyes are closed, the postural muscles relaxed, the activity of the brain altered, and consciousness of the surroundings practically suspended: "I was on the verge of sleep"
   • ▪ a state compared to or resembling sleep, such as death or complete silence or stillness: literary "a photograph of the poet in his last sleep"
   • ▪ (typically in the context of anticipating a forthcoming event) a night, or a night's sleep: informal "two more sleeps till I fly to LA"
   • 2. a gummy secretion found in the corners of the eyes after sleep: "she sat up, rubbing the sleep from her eyes"

   verb

   • 1. be in a state of sleep; be asleep: "she slept for half an hour"
   • ▪ fail to be woken by: "he was so tired he slept through the alarm"
   • ▪ be inactive or dormant: "Copenhagen likes to be known as the city that never sleeps"
   • ▪ be at peace in death; lie buried: literary "he sleeps in Holywell cemetery"
   • 2. provide (a specified number of people) with beds, rooms, or places to stay the night: "studios sleeping two people cost £70 a night"

   Word Origin Old Englishslēp, slǣp (noun), slēpan, slǣpan (verb), of Germanic origin; related to Dutch slapen and German schlafen.

   Scrabble Points: 7

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2. People also ask

   What does sleep mean?

   • : crusty matter present in the corner of an eye upon awakening : to rest in a state of sleep : to be in a state (as of quiescence or death) resembling sleep Noun I just need to get some sleep. How much sleep did you get last night? Her roommate talks in her sleep.

   Sleep Definition & Meaning - Merriam-Webster

   www.merriam-webster.com/dictionary/sleep

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   What is sleep and how does it function?

   • Sleep is a natural process that your body uses to rest and repair itself*. While it might seem as simple as closing your eyes and nodding off*, sleep is anything but simple. In fact, modern medicine's understanding of sleep, what it does and how it works is just getting off the ground.*

   sleep: what it is, why it’s important, stages, rem & nrem

   my.clevelandclinic.org/health/body/12148-sleep-basics

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   What does SLEP mean in English?

   • Middle English slepe, from Old English slǣp; akin to Old High German slāf sleep and perhaps to Latin labi to slip, slide before the 12th century, in the meaning defined at sense 1 before the 12th century, in the meaning defined at intransitive sense 1 “Sleep.”

   Sleep Definition & Meaning - Merriam-Webster

   www.merriam-webster.com/dictionary/sleep

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3. en.wikipedia.org › wiki › SleepSleep - Wikipedia

   en.wikipedia.org › wiki › Sleep

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   Sleep is a state of reduced mental and physical activity in which consciousness is altered and certain sensory activity is inhibited. Learn about the physiology, stages, cycles, and purposes of sleep, as well as the common sleep disorders and their causes and effects.

4. www.merriam-webster.com › dictionary › sleepSleep Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › sleep

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   Learn the noun and verb meanings of sleep, as well as its synonyms, examples, etymology, and related phrases. See also the kids and medical definitions of sleep.

5. sleep.hms.harvard.edu › education-training › publicScience of Sleep: What is Sleep? | Sleep Medicine

   sleep.hms.harvard.edu › education-training › public

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   Oct 1, 2021 · Learn how sleep scientists define sleep based on brain waves and physiological functions. Explore the natural patterns of sleep and the factors that disrupt them.

6. Videos

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     3:32

     youtube.com

     Physiology of Sleep

     6 Jan 2018

     55.7K views

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     11:41

     youtube.com

     How does sleep work? - Introduction, Physiology, EEG, Circadian Rhythm & Stages of Sleep

     23 Mar 2023

     15.5K views

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     2:35

     sleepfoundation.org

     How Sleep Works: Understanding the Science of Sleep

     16 Sep 2015

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7. www.britannica.com › science › sleepSleep | Definition, Patterns, Deprivation, & Theories ...

   www.britannica.com › science › sleep

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   Sep 1, 2024 · Sleep is a state of reduced responsiveness to external stimuli with complex and predictable changes in physiology. Learn about the behavioral, physiological, and neural criteria for defining sleep, and how sleep affects humans and other animals.

8. dictionary.cambridge.org › dictionary › englishSLEEP | English meaning - Cambridge Dictionary

   dictionary.cambridge.org › dictionary › english

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   Learn the meaning of sleep as a noun and a verb, with synonyms, idioms and phrasal verbs. See how to use sleep in different contexts and sentences from the Cambridge English Corpus.

9. my.clevelandclinic.org › health › bodySleep: What It Is, Why It’s Important, Stages, REM & NREM

   my.clevelandclinic.org › health › body

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   Jun 19, 2023 · Sleep is a normal body process that allows your body and brain to rest. Learn about the stages of sleep, the benefits of sleep, and the conditions and disorders that affect sleep quality and quantity.

10. www.dictionary.com › browse › sleepSLEEP Definition & Meaning - Dictionary.com

    www.dictionary.com › browse › sleep

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    Sleep definition: to take the rest afforded by a suspension of voluntary bodily functions and the natural suspension, complete or partial, of consciousness; cease being awake.. See examples of SLEEP used in a sentence.