What term do sleep researchers use to designate stages N1-N3 of sleep?
A) REM (or R) sleep
B) non-REM (NREM, or N) sleep
C) REMN sleep
D) paradoxical sleep

Question

Quizplus · Accepted Answer

Sleep researchers use the term non-REM (NREM, or N) sleep to designate stages N1-N3 of sleep. REM sleep, paradoxical sleep, and REMN sleep specifically refer to the stage of sleep characterized by rapid eye movements and vivid dreaming.

What Term Do Sleep Researchers Use to Designate Stages N1-N3