sleep-wake cycle
[ sleep-weyk ]
/ ˈslipˈweɪk /
noun
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.
Words nearby sleep-wake cycle
sleep-away,
sleep-in,
sleep-induced apnea,
sleep-out,
sleep-terror disorder,
sleep-wake cycle,
sleepcoat,
sleeper,
sleeper seat,
sleeper terrorist,
sleeping