Lazaro goes to bed at 10 P.M. and quickly falls asleep. He sleeps soundly until 6 A.M. the next morning. During the first four hours of sleep, Lazaro will most likely experience:
A) long episodes of REM sleep.
B) stages 3 and 4 NREM sleep.
C) the complete absence of dreaming.
D) very light sleep consisting almost entirely of stages 1 and 2 NREM.

Question

Quizplus · Accepted Answer

During the first four hours of sleep, the body is typically in stages 3 and 4 of non-REM sleep, also known as slow-wave sleep. This is the deepest stage of sleep where the body is most relaxed and the brain waves are slow. It is during this stage that the body can restore and repair itself.

Lazaro Goes to Bed at 10 P