Although dreams may occur in all stages of sleep,they generally happen in stages 3 and 4 of NREM sleep.

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Dreams most commonly occur during REM (rapid eye movement) sleep, which is a stage of sleep characterized by rapid eye movements, increased brain activity, and muscle paralysis. While it is possible to have dreams during stages 3 and 4 of NREM (non-rapid eye movement) sleep, they are typically not as vivid or memorable as those experienced during REM sleep.

Although Dreams May Occur in All Stages of Sleep,they Generally