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Menopausal night sweats are hot flashes during sleep, and they can disrupt rest for years. Learn the causes, when to get checked and treatments that help.
Menopausal night sweats are hot flashes that happen during sleep. They cause sudden heat and sweating that can soak your nightclothes or bedding and wake you up. They’re common in perimenopause and the early years after menopause and can disrupt sleep for years. Night sweats with fever, weight loss or swollen glands need a medical check.
You may wake up feeling intensely hot, flushed and sweaty, sometimes with a racing heart. Afterward you often feel chilled, especially if your nightclothes or sheets are damp. Some people wake several times a night; others have occasional episodes.
Many people also notice they wake frequently, or in the early hours, even without obvious sweating. Night sweats and sleep problems are closely linked. See sleep problems.
Night sweats are a vasomotor symptom, just like hot flashes. Falling and fluctuating estrogen affects the brain’s temperature-control center, narrowing the range of temperatures the body tolerates comfortably. A small rise in core temperature can trigger flushing and sweating to cool you down, whether you’re awake or asleep.
Up to 80% of women experience hot flashes or night sweats during the menopause transition. In the SWAN study, women with frequent hot flashes or night sweats had them for a median of 7.4 years, including a median of 4.5 years after the final period. The NHS notes that women from a Black ethnic background are more likely to have severe symptoms that last longer. See how long menopause symptoms last.
Menopause is a very common cause of night sweats in midlife, but not the only one. Other causes include:
A useful clue: menopausal night sweats usually come with daytime hot flashes, changes in your periods, or other menopause symptoms. See perimenopause or something else.
Tracking episodes alongside evening habits can show your personal triggers. Our private Symptom Explorer can help.
A clinician will usually ask:
If your symptoms fit menopause and you’re over 45, NICE advises no blood tests are needed to identify perimenopause or menopause. Other tests, such as a blood count, thyroid function or a chest X-ray, may be needed if another cause is suspected.
Treatments for night sweats are the same as for hot flashes.
Gabapentin can cause drowsiness, which some people find helpful at night and others find troublesome. Discuss side effects with your clinician.
Your bedroom
Your evening
If you wake up
For two weeks, note:
| What to record | Why it helps |
|---|---|
| How many times you woke, and whether you were sweating | Shows how much night sweats disrupt your sleep |
| Evening alcohol, caffeine and spicy food | Reveals personal triggers |
| Bedroom temperature and bedding | Helps you adjust your environment |
| Where you are in your cycle, if you still have periods | Shows whether night sweats cluster before periods |
| How you felt the next day | Links night sweats to fatigue, mood and concentration |
Bring the diary to your appointment. It makes treatment decisions much easier.
Night sweats can disturb a partner too. Some couples find it helps to:
Talking openly about it reduces worry and resentment on both sides.
Book an appointment if:
Seek prompt medical advice if night sweats come with:
- Fever, or night sweats that started after travel or an infection
- Unexplained weight loss
- Swollen glands, a persistent cough, or coughing up blood
- Diarrhea, tremor or palpitations
- Night sweats that are new and you have no other menopause symptoms
See your first menopause appointment.
Hot flashes · Sleep problems · Fatigue · Brain fog · Anxiety
Some people notice symptoms mainly at night, when the body’s temperature changes during sleep and bedding traps heat. The cause and treatments are usually the same as for daytime hot flashes.
Yes. Night sweats often begin in perimenopause while periods are still happening, and sometimes worsen just before a period.
Usually not, when they come with other menopause symptoms. But night sweats with fever, weight loss or swollen glands should always be checked.
Hormone therapy is the most effective treatment for night sweats for most people, although it isn’t suitable for everyone. Non-hormonal medicines and CBT are alternatives.
Editorial status: evidence-based educational article; not individually medically reviewed. Last evidence check: September 10, 2026.
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