Periods of REM sleep alternate with periods of non-REM sleep in a cycle that recurs about every ________ minutes or so.

Question

Quizplus · Accepted Answer

The cycle of REM and non-REM sleep, known as the sleep cycle, recurs about every 90 minutes, although it may vary slightly among individuals or throughout the night. This cycle is important for the restorative functions of sleep, including memory consolidation and emotional regulation.

Periods of REM Sleep Alternate with Periods of Non-REM Sleep