Newborns spend about what percentage of their sleep time in REM?

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Newborns spend about 50% of their sleep time in REM. REM (Rapid Eye Movement) is a stage of sleep where the eyes move back and forth rapidly, and is associated with dreaming. This is in contrast to NREM (Non-Rapid Eye Movement) sleep, which is characterized by the absence of eye movements and is divided into several stages based on brain activity patterns. Newborns spend more time in REM sleep than adults, with the proportion gradually decreasing as they age.

Newborns Spend About What Percentage of Their Sleep Time in REM