Question

how long does non-rem sleep last?
(1 point)
○ 60-90 minutes
○ 80-120 minutes
○ 90-110 minutes
○ 90-120 minutes

Explanation:

Non - REM sleep typically lasts about 90 - 120 minutes. This is based on the general understanding of sleep cycles where non - REM and REM sleep alternate. Each complete sleep cycle (including non - REM and REM) is approximately 90 - 120 minutes, and non - REM is a significant part of this cycle.

Answer:

90 - 120 minutes