Nightmares Fluctuate Across the Menstrual Cycle and May be More Pronounced in Women With Premenstrual Syndrome.

Introduction: Premenstrual syndrome (PMS) affects nearly half of women worldwide and is associated with sleep disturbances, though the specific relationship between PMS and nightmares remains underexplored. Clinical observations suggest a potential link, leading this study to investigate whether women with PMS experience more frequent or intense nightmares compared to those without PMS.

Methods: We conducted a prospective case series of seven women experiencing nightmares, all of whom participated in weekly imagery rehearsal therapy (IRT) over 1-month.