ICSD-3 criteria for NREM parasomnias

Disorders of arousal#Recurrent episodes of incomplete arousal from sleep:
 Usually occurring during the first third of the major sleep period
 The individual may appear confused or disorientated for several minutes after the episode
Inappropriate or absent responsiveness
Limited or no associated dream imagery
Partial or complete amnesia for the episode
The episode is not better explained by another sleep disorder, mental disorder, medical disorder, or substance or medication use

#: confusional arousals, sleepwalking, sleep terrors. Information from [1].