Which of the following stages of non-rapid eye movement (NREM)sleep is considered the deepest level of sleep?
A)Stage one
B)Stage two
C)Stage three
D)Stage four

Question

Quizplus · Accepted Answer

Stage four is considered the deepest level of NREM sleep, also known as slow-wave sleep. During this stage, brain waves become much slower, and it is difficult to wake up someone in this stage.

Which of the Following Stages of Non-Rapid Eye Movement (NREM)sleep