What are the two sleep phases called?
A) circadian and non-circadian
B) homeostatic and non-homeostatic
C) rapid eye movement and non-rapid eye movement
D) interruptive and non-interruptive

Question

Quizplus · Accepted Answer

The two main phases of sleep are rapid eye movement (REM) and non-rapid eye movement (NREM) sleep. REM sleep is associated with dreaming and brain activity similar to wakefulness, while NREM sleep is divided into stages and is a deeper, more restorative type of sleep.

What Are the Two Sleep Phases Called