Parasomnia is an undesirable physical phenomena that occurs during sleep and is classified into three groups: non-rapid eye movement (REM), REM, and other parasomnias. Non-REM parasomnias that occur during non-REM sleep include wakefulness disorders, including confusional arousal, sleepwalking, sleep terrors, and newly added sleep-related eating disorders. REM sleep parasomnias related to dream...