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.

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“Compliment” and “complement” had a shared meaning a long time ago, but today they are no longer interchangeable.

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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