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    sleep
    [slēp]
    noun
    sleep (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" · "he talked in his sleep" · "a good night's sleep" · "the effects of sleep loss"
      • literary
        a state compared to or resembling sleep, such as death or complete silence or stillness:
        "a photograph of the poet in his last sleep"
    2. a gummy or gritty secretion found in the corners of the eyes after sleep:
      "she sat up, rubbing the sleep from her eyes"
    verb
    sleep (verb) · sleeps (third person present) · slept (past tense) · slept (past participle) · sleeping (present participle)
    1. be in a state of sleep; be asleep:
      "she slept for half an hour"
      • (sleep through)
        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"
      • literary
        be at peace in death; lie buried:
        "he sleeps beneath the silver birches"
    2. provide (a specified number of people) with beds, rooms, or places to stay the night:
      "studios sleeping two people cost $70 a night"
    Origin
    Old English slēp, slǣp (noun), slēpan, slǣpan (verb), of Germanic origin; related to Dutch slapen and German schlafen.
    Translate sleep to
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    Similar and Opposite Words
    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:
      nap
      doze
      rest
      siesta
      drowse
      catnap
      beauty sleep
      snooze
      forty winks
      power nap
      kip
      zizz
      bye-byes
      slumber
      a bit of shut-eye
      verb
      1. be in a state of sleep; be asleep:
        doze
        rest
        nap
        catnap
        drowse
        snooze
        kip
        zizz
        catch some Zs
        slumber
        be asleep
        take a siesta
        take a nap
        sleep like a log/top
        snatch forty winks
        get some shut-eye
        be in the land of Nod
        have a kip
        get one's head down
        get some zizz
        doss (down)
        be in the arms of Morpheus
        Opposite:
        wake up
         
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      1. Merriam Webster
        https://www.merriam-webster.com › dictionary › sleep

        Sleep Definition & Meaning - Merriam-Webster

         
      2. Division of Sleep Medicine
        https://sleep.hms.harvard.edu › education-training › ...

        Science of Sleep: What is Sleep? | Sleep Medicine

        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.

      4. Cambridge Dictionary
        https://dictionary.cambridge.org › dictionary › english › sleep

        SLEEP | English meaning - Cambridge Dictionary

      5. Britannica
        https://www.britannica.com › science › sleep

        Sleep | Definition, Patterns, Deprivation, & Theories | Britannica

      6. Wikipedia
        https://en.wikipedia.org › wiki › Sleep

        Sleep - Wikipedia

      7. People also ask
        What are some chronic diseases and conditions that can be caused by not getting enough sleep?
        Not getting enough sleep is linked with many chronic diseases and conditions—such as type 2 diabetes, heart disease, obesity, and depression—that threaten our nation’s health. Not getting enough sleep can lead to motor vehicle crashes and mistakes at work, which cause a lot of injury and disability each year.

        Sleep and Sleep Disorders | CDC

        cdc.gov
        What are the different stages of sleep?
        Sleep in humans consists of four sleep stages: rapid eye movement (REM) sleep, and three non-rapid eye movement (NREM) sleep stages. Dreams can happen in any sleep stage. It is a popular misconception that dreams only occur during REM sleep.

        How Long Are Dreams? | Sleep Foundation

        sleepfoundation.org
        What are the consequences of not getting enough sleep?
        Not getting enough sleep is linked to many adverse effects, including impaired focus and decision-making and an increased risk of heart disease, obesity, diabetes, and Alzheimer’s. Everyone has unique needs and preferences, and individual sleep requirements are no different.

        How Many Hours of Sleep Do You Really Need? - Healthline

        healthline.com
        What are the benefits of sleep?
        Sleep is a powerful stress-reliever. It improves concentration, regulates mood, and sharpens judgment and decision-making. A lack of sleep not only reduces mental clarity but our ability to cope with stressful situations. This is due, in part, to the impact of chronically high levels of cortisol.

        Why Do We Need Sleep? | Sleep Foundation

        verywellhealth.com
        Feedback
      8. National Institute of Neurological Disorders and Stroke
        https://www.ninds.nih.gov › health-information › ...

        Brain Basics: Understanding Sleep | National Institute of …

      9. Collins Dictionary
        https://www.collinsdictionary.com › ... › english › sleep

        SLEEP definition and meaning | Collins English …

        Learn the meaning of sleep as a noun and a verb, with synonyms, pronunciation, and examples. Find out how to use sleep in different contexts, such as sleep on it, sleep around, or sleep with.

      10. Medical Dictionary
        https://medical-dictionary.thefreedictionary.com › sleep

        Sleep | definition of sleep by Medical dictionary

      11. Cambridge Dictionary
        https://dictionary.cambridge.org › us › dictionary › learner-english › sleep

        SLEEP | definition in the Cambridge Learner’s Dictionary

      12. Psychology Dictionary
        https://psychologydictionary.org › sleep

        What is SLEEP? definition of SLEEP (Psychology …

        Apr 13, 2013 · What is sleep, and why is it important? Cognitive functioning, emotional control, and general health are all significantly impacted by the restorative physiological process of sleep. Because it has such a significant …

      13. The Free Dictionary
        https://www.thefreedictionary.com › sleep

        Sleep - definition of sleep by The Free Dictionary

      14. Collins Dictionary
        https://www.collinsdictionary.com › us › dictionary › english › sleep

        SLEEP definition in American English - Collins Online Dictionary

      15. sleepdoctor.com
        https://sleepdoctor.com › how-sleep-works › what-is-sleep

        What Is Sleep? Why, When, and How Our Bodies Rest - Sleep …

      16. News-Medical.net
        https://www.news-medical.net › health › What-is-sleep.aspx

        What is Sleep? - News-Medical.net

      17. Cambridge Dictionary
        https://dictionary.cambridge.org › us › dictionary › english › sleep

        SLEEP | definition in the Cambridge English Dictionary

      18. Psychology Today
        https://www.psychologytoday.com › us › basics › sleep

        Sleep | Psychology Today

      19. Dictionary
        https://www.dictionary.com › browse › sleep

        SLEEP Definition & Meaning | Dictionary.com

      20. Cambridge Dictionary
        https://dictionary.cambridge.org › dictionary › learner-english › sleep

        Meaning of sleep – Learner’s Dictionary - Cambridge Dictionary

      21. Cambridge Dictionary
        https://dictionary.cambridge.org › ... › sleep

        SLEEP definition | Cambridge Essential American Dictionary

      22. Dictionary
        https://www.dictionary.com › browse › sleep

        SLEEP Definition & Meaning | Dictionary.com

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