What term do sleep researchers use to designate stages 1-4 of sleep?
A)REM sleep
B)non-REM sleep
C)deep sleep
D)paradoxical sleep

Question

Quizplus · Accepted Answer

Sleep researchers use the term "non-REM sleep" to designate stages 1-4 of sleep. REM sleep is its own separate stage, and while stage 3 and 4 are sometimes referred to as "deep sleep", the more accurate and commonly used term is still non-REM sleep. "Paradoxical sleep" is another name for REM sleep, but it is not applicable to stages 1-4.

What Term Do Sleep Researchers Use to Designate Stages 1-4