verb (intransitive, adverb)
(informal) (of a baby) to sleep all night without waking up
Sleep without waking for a period of time, usually the night, as in At three months many babies have learned to sleep through. [ Mid-1900s ]
sleep through something. Fail to pay attention, as in We all slept through the explanation and then had trouble getting the machines started.
sleep like a top
- Sleep-wake cycle
[sleep-weyk] /ˈslipˈweɪk/ noun 1. Physiology. the species-specific biological pattern of alternating sleep and wakefulness, in humans roughly 8 hours of nocturnal sleep and 16 hours of daytime activity.
verb (used without object) 1. to engage in sleepwalking. noun 2. an act of sleepwalking; somnambulation. verb 1. (intransitive) to walk while asleep See also somnambulism sleep on something
[sleep-waw-king] /ˈslipˌwɔ kɪŋ/ noun 1. the act or state of walking, eating, or performing other motor acts while asleep, of which one is unaware upon awakening; somnambulism. adjective 2. of or relating to the state of walking while asleep; somnambulistic. sleepwalking sleep·walk·ing (slēp’wô’kĭng) n. The act of walking or performing another activity associated with wakefulness […]