Abnormal behaviors arising from sleep are known as parasomnias.  Parasomnias occurring during NREM Sleep are known as NREM parasomnias.  The best known NREM parasomnia is Sleep Walking, also known as somnambulism. There are other types of NREM parasomnias including Sleep Terrors, Confusional Arousals, Sleep Related Eating and Sleep Sex (Sexsomnia).