Sleep library · Night sweats & hot flashes
Night sweats and sleep in perimenopause: what helps
Short answer. Night sweats are a common reason sleep breaks up in perimenopause. A cool bedroom, breathable layers you can kick off and cool water by the bed help in the moment. For frequent or severe symptoms, hormone therapy is the most effective treatment according to The Menopause Society, and cognitive behavioral therapy has evidence for reducing how much hot flashes bother you. Both are worth discussing with a clinician.
Set up the bedroom
- Aim for roughly 60 to 67°F (16 to 19°C).
- Use breathable layers instead of one heavy duvet, so you can adjust without fully waking.
- Keep cool water within reach; a fan can help.
- Track which nights are worst and where you are in your cycle.
Habits that may matter
Alcohol, spicy food and a hot shower right before bed are common personal triggers. A short tracker makes it easier to see yours.
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Treatments with the strongest evidence
The Menopause Society's 2022 position statement describes hormone therapy as the most effective treatment for hot flashes and night sweats, with benefits that generally outweigh risks for healthy women under 60 or within ten years of menopause. Non-hormonal medications and CBT are options for women who cannot or prefer not to use hormones. A clinician can help you weigh them.
When to see a doctor
Book an appointment if night sweats wake you most nights, if they come with fever or weight loss, or if they start outside the usual age range for perimenopause.
Frequently asked questions
Are night sweats normal in your 40s?
They are common in perimenopause, but night sweats can have other causes too, including infections and some medications. If they are new and frequent, mention them to a clinician.
Do cooling pillows and mattresses work?
They can make the bed feel cooler, and some people find them helpful, but good studies are limited. A cooler room and lighter layers are a cheaper first step.
Which sleep pattern is yours?
The free Sleep Code quiz takes two minutes and gives you one thing to try tonight.
Keep reading
Sources
- The North American Menopause Society (now The Menopause Society). The 2022 hormone therapy position statement. Menopause, 2022.
- Avis et al., 2015, JAMA Internal Medicine: how long hot flashes and night sweats last
- NHS: Night sweats
- McCurry et al., 2016, JAMA Internal Medicine: telephone CBT-I for women in perimenopause and after menopause
This article is educational and is not medical advice. It was checked against the sources above on 2026-10-16.