Final answer:
REM sleep involves quick eye movements, dreaming, and reduced awareness, while non-REM sleep is a deep sleep stage with slow brainwaves and consists of N1, N2, and N3 stages.
Explanation:
REM vs. Non-REM Sleep
Sleep consists of two major stages: REM (Rapid Eye Movement) and non-REM sleep. Non-REM sleep is divided into three substages - N1, N2, and N3. REM sleep is characterized by quick eye movements, dreaming, and reduced awareness of external events. On the other hand, non-REM sleep is a deep sleep stage with slow brainwaves that includes the N1, N2, and N3 stages.
Learn more about Sleep stages here:
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