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sleep

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noun American English pronunciation: sleep /slip/
  1. 1
    [uncountable] a natural state in which you are unconscious for a time and your body rests, especially for several hours at night

    Babies need a lot of sleep.

    get to sleep:

    I can't get to sleep if there's any noise.

    I woke up during the storm and couldn't get back to sleep.

    without sleep:

    A night without sleep left him red-eyed and haggard.

    get some/much/any sleep:

    You need to go home and get some sleep.

  2. 3
    [singular] a period of time when you are sleeping

    Karen woke up from a long sleep and rubbed her eyes.

    a good night's sleep:

    I haven't had a good night's sleep for over a week.

    a deep/light sleep (=one that is difficult/easy to wake up from):

    She lay down and soon fell into a deep sleep.

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