What percentage of infant sleep is spent, on average, in REM sleep?
A) 70 percent
B) 50 percent
C) 25 percent
D) 10 percent

Question

Quizplus · Accepted Answer

Infants spend about 50 percent of their sleep time in REM (Rapid Eye Movement) sleep, which is significantly higher than the percentage of REM sleep in adults. This high proportion of REM sleep in infants is thought to be important for the development of the brain.

What Percentage of Infant Sleep Is Spent, on Average, in REM