The expression "sleeping like a baby" was probably meant to describe the __________ state of arousal.
A) REM sleep
B) drowsiness
C) NREM sleep
D) quiet alertness

Question

Quizplus · Accepted Answer

The expression "sleeping like a baby" usually means sleeping deeply without disturbance, which is most likely to occur during NREM (non-rapid eye movement) sleep. During this stage of sleep, the body is relaxed and the brain is in a slower state of activity. In contrast, REM (rapid eye movement) sleep is characterized by increased brain activity and vivid dreaming, while drowsiness and quiet alertness are not associated with a deep, restful sleep. Therefore, choice C is the best answer.

The Expression "Sleeping Like a Baby" Was Probably Meant to Describe