REM cycle

Rapid eye movement

REM cycle refers to the recurring pattern of rapid eye movement sleep that occurs throughout the night.

During REM sleep, the eyes move quickly, brain activity increases, and most vivid dreaming occurs.

A complete sleep cycle—moving from light sleep through deep sleep to REM—typically lasts about 90 minutes, with REM periods growing longer toward morning.

I woke up in the middle of a REM cycle and felt groggy all day.

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deep · stage · sleep stage · brain · brain waves · rapid · restful · vivid · nightmare · memory · wave · paralysis · unconscious · pillow · night · restorative · good night's sleep · theta

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Opposites
sleep stage type

REM cyclenon-REM sleep

Restful phase without dreaming

deep sleep · light sleep · dreamless sleep · restorative sleep

consciousness state

REM cyclewakefulness

State of being conscious

waking state · conscious awareness · arousal · vigilance

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REM, cycle, eye, movement, cycles, cyclic, cyclical, cycling, cyclist

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