2025-11-192026-03-272025-11-1920151550-938910.5664/jcsm.4542https://doi.org/10.5664/jcsm.4542https://repositorio.inprf.gob.mx/handle/123456789/8504The occurrence of non-epileptic seizures (NES) and trichotillomania during sleep is rare. We describe the case of an adult woman with a personal history of childhood maltreatment and psychiatric morbidity (major depression, trichotillomania, and conversion disorder), who was referred to the sleep unit because of nocturnal hair-pulling and psychomotor agitation during sleep. An all-night PSG recording with audiovisual monitoring documented seven episodes of trichotillomania and one NES, all of which arose from unequivocal wakefulness. Improvement of nocturnal behaviors was observed after long-term psychotherapy. This case illustrates that nocturnal trichotillomania and NES may be symptoms of a sleep-related dissociative disorder.PDFengAcceso CerradoArtículo1550-9397Instituto Nacional de Psiquiatría Ramón de la Fuente MuñizEstados UnidosTrichotillomaniaDissociative disorderParasomniaConvulsionNon-epilepticSleep