Quizzes & Puzzles9 mins ago
Sleep
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What is REM sleep
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For more on marking an answer as the "Best Answer", please visit our FAQ.REM sleep occurs several times during a night as we sleep in cycles of different types of sleep.
If you wake naturally (ie not with an alarm) then you will have just have come out of a period of REM sleep. As this is the time when you dream, this explains why you can often remember your dreams on waking