How many sleep cycles does a person typically experience over the course of one night?
A) one
B) two
C) three
D) four or five

Question

Quizplus · Accepted Answer

A person typically experiences four to five sleep cycles over the course of one night. Each sleep cycle lasts around 90 minutes and includes both non-REM and REM sleep. This means that a person can go through several cycles of light sleep, deep sleep, and dreaming throughout the night.

How Many Sleep Cycles Does a Person Typically Experience Over