REM-une regulatsiooni häirest tekkiv hetkeline sunduni, unehäire, mida iseloomustab ebakorrapärane REM-uni ja märkimisväärsed une- ja ärkvelolekuhäired, recurrent, uncontrollable, brief episodes of sleep, often associated with hypnagogic or hypnopompic hallucinations, cataplexy, and sleep paralysis, disorder of the regulation of consciousness and sleep characterised by excessive diurnal somnolence, excessive and uncontrollable sleep urges, sudden onset of attacks of cataplexy during full consciousness, hypnagogic hallucinations at sleep onset and hypnopompic hallucinations during waking, and sleep paralysis also occurring at sleep onset or during waking