Insomnia and PMS: what to know

Sleep trouble may appear in the days before bleeding and ease after the period starts, although the pattern differs between people. Physical discomfort can make it harder to settle or can wake you. Irritability, low mood or worry may keep the mind active at bedtime. A changing sleep pattern can then leave you tired or less able to concentrate the next day.

Track bedtime, waking, symptoms, bleeding and medicines for several cycles. A repeating pattern supports a PMS-related explanation, but sleep difficulty can also occur independently. Review persistent symptoms with a clinician, especially if they continue outside the premenstrual days.

Keep wake time steady, use a dim and quiet wind-down period, and reserve the bed for sleep. Gentle movement during the day may ease tension; heat can help some people with cramps. Limit late caffeine, nicotine, alcohol and heavy meals. If you are awake and frustrated, leave the bed briefly for a calm activity in low light, then return when sleepy.

Ask a clinician or pharmacist before using pain relief, sleep products or hormonal treatment, because suitability depends on your health and other medicines. If symptoms are severe each cycle, assessment can consider PMS or premenstrual dysphoric disorder.

Arrange a medical review if sleep difficulty lasts beyond the premenstrual phase, repeatedly affects work or relationships, or is accompanied by marked daytime sleepiness. Seek urgent help for thoughts of self-harm, feeling unsafe, severe agitation, or an inability to function. Do not drive when very sleepy.

Could my symptoms fit PMS or another sleep problem? Which treatments are suitable with my medical history? Should I keep a symptom and sleep diary, and when should we review it?