If you awaken to find your roommate seemingly acting out his dream by knocking things off of his nightstand, attempting to jump around the room, and talking, he likely has this parasomnia.
A) somnilogy
B) REM-sleep behavior disorder
C) somnambulism
D) night terrors

Question

Quizplus · Accepted Answer

REM-sleep behavior disorder is characterized by the individual physically acting out vivid, often unpleasant dreams with vocal sounds and sudden, often violent arm and leg movements during REM sleep—the stage of sleep when dreaming occurs. This is because the paralysis that normally occurs during REM sleep is incomplete or absent, allowing the person to "act out" their dreams.

If You Awaken to Find Your Roommate Seemingly Acting Out