Quick answer: Sleep often changes during perimenopause because shifting estrogen and progesterone affect body temperature, mood and the brain's sleep systems. Night sweats, waking at 2 or 3 a.m. and lighter, more broken sleep are the most common complaints. Research from the SWAN study shows sleep difficulties become more common as women move through the transition. A cool bedroom, a steady routine, cognitive behavioral therapy for insomnia (CBT-I) and a check for sleep apnea are the most useful places to start.
Key takeaways
- Roughly 39 to 47% of perimenopausal women report sleep difficulties, compared with 16 to 42% before the transition.
- The more nights you have hot flashes or night sweats, the more likely your sleep is to be disrupted.
- Sleep apnea becomes more common in midlife women and is often missed.
- CBT-I is the most effective long-term, drug-free approach to persistent sleeplessness.
Why does perimenopause affect sleep?
If you used to sleep through the night and now find yourself staring at the ceiling at 3 a.m., you are in very good company. Several changes happen at once during perimenopause, and each can nudge your sleep off course.
Estrogen and your internal thermostat
Estrogen helps regulate body temperature. As levels swing up and down, the brain's thermostat becomes more sensitive, which can trigger night sweats. Even small temperature spikes that do not fully wake you can pull you out of deep sleep.
Progesterone and calm
Progesterone has a naturally calming, sleep-friendly effect for many women. Because ovulation becomes less regular in perimenopause, progesterone often drops earlier than estrogen. Many women notice they feel more wired at bedtime as a result.
Mood and stress
Midlife is busy. Careers, teenagers, aging parents and the transition itself can all raise stress levels. Low mood and anxious thoughts are closely linked with poor sleep, and poor sleep in turn makes mood harder to manage. It is a two-way street.
Other sleep disruptors that increase with age
Waking to use the bathroom, joint aches and restless legs can all become more frequent in midlife. Sleep apnea, covered below, is another important factor.
How common are sleep problems in perimenopause?
Very common. A review of research from the Study of Women's Health Across the Nation (SWAN) reported that sleep difficulties affect about 16 to 42% of women before the transition, 39 to 47% during perimenopause and 35 to 60% after menopause. In a large SWAN survey of more than 12,000 women aged 40 to 55, nearly 38% reported trouble sleeping in the previous two weeks, with the highest rates in late perimenopause.
Waking during the night is the most common pattern. SWAN researchers also found a clear link with night sweats: women who had hot flashes or night sweats on 6 or more nights out of 14 were roughly two to three times more likely to report disturbed sleep than women without them.
Common perimenopause sleep changes
- Waking at 2, 3 or 4 a.m. and struggling to fall back asleep
- Night sweats that leave you kicking off covers or changing pajamas
- Trouble falling asleep, often with a racing mind
- Lighter, less refreshing sleep, even after a full night in bed
- Daytime fatigue and brain fog that follow a poor night
Don't overlook sleep apnea
Sleep apnea causes repeated pauses in breathing during the night. Many people think of it as a men's issue, but the risk rises for women in midlife. In the SWAN Sleep Study, 20% of women had moderate or more significant sleep apnea, a much higher rate than in a comparable general population group. In women, the signs can be subtle: morning headaches, waking unrefreshed, daytime sleepiness, mood changes or snoring that a partner notices. If any of these sound familiar, ask your provider about a sleep evaluation, because apnea needs its own medical care.
How to sleep better during perimenopause
Make your bedroom cool, dark and quiet
- Keep the room cool, use breathable bedding and consider a fan by the bed.
- Wear light, moisture-wicking sleepwear and keep a spare set nearby.
- Use blackout curtains or an eye mask, and earplugs or white noise if needed.
Keep a steady rhythm
- Go to bed and get up at the same time every day, including weekends.
- Get outdoor light in the morning to anchor your body clock.
- Limit naps to 20 minutes, earlier in the day.
Watch the evening habits
- Avoid caffeine after early afternoon. Remember that some energy drinks and supplements contain it.
- Go easy on alcohol. It may help you fall asleep but often causes 3 a.m. wake-ups and can trigger night sweats.
- Finish large meals and spicy foods two to three hours before bed.
- Build a wind-down routine: dim lights, put screens away and try reading, stretching or a warm (not hot) shower.
If you wake in the night
Resist checking the clock. If you are awake for more than about 20 minutes, get up, go somewhere dim and do something calm until you feel sleepy, then return to bed. This keeps your brain linking bed with sleep rather than frustration.
What is CBT-I, and does it help?
Cognitive behavioral therapy for insomnia (CBT-I) is a structured program, usually four to eight sessions, that retrains sleep habits and the worried thoughts that keep you awake. Major medical organizations recommend it as the first approach for persistent sleeplessness, and studies show it works well for midlife women, including those with hot flashes. It is available through sleep clinics, therapists, online programs and apps. Unlike sleeping pills, its benefits tend to last after the program ends.
If night sweats are the main problem, addressing them directly helps sleep too. Our guide to non-hormonal approaches to hot flashes covers the options with the best evidence.
Can supplements support sleep during menopause?
Many women look for gentle, hormone-free support during this stage. She+, a once-a-day menopause support jelly stick for sleep, mood and hot flashes, combines black cohosh, red clover and ginger extract. By supporting comfort during hot flashes and night sweats, it is designed to promote more restful sleep as part of a healthy routine.* Some women also look at Seren-T for evening relaxation.*
Supplements work best alongside the habits above, not instead of them. Check with your provider before starting anything new, especially if you take sleep aids or other medications. Our list of questions to ask your doctor about menopause supplements can help.
When to see your doctor
See your provider if poor sleep lasts more than a few weeks, affects your daytime life, or comes with loud snoring, gasping, morning headaches, persistent low mood or restless legs. These deserve a proper assessment. To understand where you are in the transition, read What Is Perimenopause? How It Differs from Menopause.
Frequently asked questions
Why do I wake up at 3 a.m. during perimenopause?
Shifting estrogen and progesterone, night sweats, stress and a lighter sleep pattern all make middle-of-the-night waking more common during perimenopause.
Can perimenopause cause sleep problems even without hot flashes?
Yes. Lower progesterone, mood changes, stress and other midlife factors can affect sleep on their own, although night sweats make sleep disruption more likely.
What is the best way to sleep better during menopause?
Keep your bedroom cool and dark, stick to a regular schedule, limit alcohol and late caffeine, and consider CBT-I, which major medical organizations recommend first for persistent sleeplessness.
Should I be checked for sleep apnea?
Talk to your provider if you snore, wake unrefreshed, have morning headaches or feel sleepy during the day. Sleep apnea becomes more common in midlife women and needs its own care.
Can a supplement help me sleep during menopause?
Some women use botanical supplements as part of a sleep-friendly routine. She+ is designed to support comfort during night sweats and promote more restful sleep. Check with your provider first, especially if you take other sleep aids.
References
- Kravitz HM, Joffe H. Sleep during the perimenopause: a SWAN story. Obstet Gynecol Clin North Am. 2011;38(3):567-586. Full text
- Avis NE, et al. Duration of menopausal vasomotor symptoms over the menopause transition (SWAN). JAMA Intern Med. 2015;175(4):531-539.
- Qaseem A, et al. Management of chronic insomnia disorder in adults: a clinical practice guideline from the American College of Physicians. Ann Intern Med. 2016;165(2):125-133.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. This article is for general education and is not medical advice. Talk with your healthcare provider before starting a supplement, especially if you are pregnant, nursing, take medication or have a medical condition.