What is the meaning of sleep?

noun

• A natural and periodic state of rest during which consciousness of the world is suspended.
  • usage: "he didn't get enough sleep last night"; "calm as a child in dreamless slumber"
  • synonyms: slumber
• A torpid state resembling deep sleep.
  • synonyms: sopor
• A period of time spent sleeping.
  • usage: "he felt better after a little sleep"; "there wasn't time for a nap"
  • synonyms: nap
• Euphemisms for death (based on an analogy between lying in a bed and in a tomb. )
  • usage: "she was laid to rest beside her husband"; "they had to put their family pet to sleep"
  • synonyms: rest, eternal rest, eternal sleep, quietus

verb

• Be asleep.
  • synonyms: kip, slumber, log Z's, catch some Z's
• Be able to accommodate for sleeping.
  • usage: "This tent sleeps six people"