In which state is most of a person's sleep time spent?

Question

Quizplus · Accepted Answer

Most of a person's sleep time is spent in NREM (non-rapid eye movement) sleep, which includes the stages of light sleep (Stage 1) and deep sleep (Stages 3 and 4). REM (rapid eye movement) sleep, which is associated with dreaming, occurs intermittently throughout the night and makes up about 20-25% of a person's sleep time. Paradoxical sleep refers to the state of high brain activity and muscle paralysis during REM sleep. Therefore, the best choice is D - in NREM sleep.

In Which State Is Most of a Person's Sleep Time