If you normally sleep 8 hours each night, and last night you only slept for 6 hours, which of the following stages of sleep would be MOST affected by the loss of total sleep time?

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Quizplus · Accepted Answer

REM sleep is most affected by the loss of total sleep time. It is the stage of sleep that is most likely to be reduced when sleep duration is shortened, as the body prioritizes earlier stages of sleep, including slow-wave (deep) sleep, for physical restoration. REM sleep, which is important for cognitive functions such as memory consolidation, typically occurs later in the sleep cycle.

If You Normally Sleep 8 Hours Each Night, and Last