A1[I]to be in the state of rest when your eyes are closed, your body is not active, and your mind is unconscious: I couldn't sleep because of all the noise next door.I slept late on Sunday morning.How can Jayne sleep at night with all those worries on her mind!We had dinner with Ann and Charles and slept the night (with them) (= at their home).→ See alsooversleep, sleepoutSleep and sleeping›[T]If a vehicle, tent, etc. sleeps a particular number of people, it provides enough space or beds for that number of people to be able to sleep in it: The caravan sleeps four comfortably.Accommodating peoplesleep like a loginformal›to sleep very well: I went to bed early and slept like a log.Sleep and sleepingsleep on sthC2to delay making a decision about something important until the next day so that you have time to consider it carefully: Can I sleep on it, and tell you my decision tomorrow?Decisions and decidingsleep roughUK›to sleep outside because you have no home and no money: Hundreds of kids are sleeping rough on the streets of London.Homelessnesssleeping
/ˈsliː.pɪŋ/adjective›She looked lovingly at the sleeping child.→ See alsoasleepSleep and sleeping