SLEEP CYCLES Crossword Clue
SLEEP CYCLES Crossword Clue
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Crossword Puzzle Infos
The term 'sleep cycles' refers to the alternating periods of non-rapid eye movement (NREM) and rapid eye movement (REM) sleep that occur during a typical night's sleep. The acronym REMS is used to refer to the REM stage of sleep, which is characterized by increased brain activity and vivid dreaming.