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Sleep during menstrual cycle

Initial variations of sleep in women begin with the menstrual cycle. In subjective studies, women who report PMS or PMDD report increases in poor sleep quality. However, most objective laboratory-based PSG measures of young healthy women do not confirm irregular sleep patterns, neither in sleep duration nor sleep quality across the menstrual cycle. One exception is the reduction of REM sleep and markedly more so the increase of Stage 2 sleep during the luteal phase of the menstrual cycle. Several studies attribute this to increased estrogen and progesterone concentrations. One actigraphy study reports a modest decline in total sleep time of 25 min in late-reproductive woman during the premenstrual week. The measurement of subjectively reported sleep during the menstrual cycle differs. Seventy percent of women report a negative impact on their sleep. Furthermore, they report a decrease in sleep quality on 2.5 days each month. Poor sleep quality, connected with poor mood and menstrual pain, especially during the premenstrual week, are most likely to be reported. Psychological factors influencing sleep quality in women, related to hormonal fluctuations, such as mood disorders and sleep disorders, are often higher in women after the onset menarche.