- What they are
- Hot flashes that happen during sleep
- How common
- Up to 80% of women in the transition
- Average duration
- About 7–10 years
- Most effective treatment
- Hormone therapy
- Nonhormonal FDA-approved
- Low-dose paroxetine, fezolinetant
What is happening in your body
Your brain keeps core temperature within a comfortable band. As estrogen levels fluctuate and fall, that band appears to narrow, so a small rise in body temperature triggers a full cooling response: blood vessels in the skin open, you flush and sweat, and then you may feel chilled as the sweat evaporates.
The Menopause Society reports that up to 80 percent of women have hot flashes or night sweats during the transition, and that they last about seven to ten years on average. Each episode usually lasts one to five minutes.
Why they cost you more than a daytime flash
A hot flash at your desk is unpleasant but brief. At night, the same event often wakes you, and getting back to sleep can take far longer than the flash itself. Repeated over weeks, broken sleep feeds daytime fatigue, irritability, brain fog and low mood.
That is why treating night sweats is often less about comfort and more about protecting sleep, which affects nearly everything else.
Things that make them worse
Triggers vary from person to person, but several come up often.
- Alcohol, especially in the evening
- A warm bedroom or heavy bedding
- Spicy food or hot drinks late in the day
- Stress and poor sleep, which feed one another
- Smoking, current or past
- Higher abdominal fat, particularly early in the transition
When it might not be menopause
Night sweats have other causes, and some are important to catch. An overactive thyroid, certain medicines (including some antidepressants, diabetes medicines, opioids, tamoxifen and aromatase inhibitors), low blood sugar overnight, anxiety, alcohol use and infections can all cause sweating at night.
See a clinician promptly if night sweats are drenching and come with fever, unexplained weight loss, swollen lymph nodes or profound fatigue, since these can point to infection or, rarely, a cancer such as lymphoma.
Practical steps that help
Simple changes can take the edge off, even if they do not stop night sweats entirely.
- Keep the bedroom cool and use a fan
- Layer light, breathable bedding and sleepwear you can shed easily
- Keep cold water by the bed
- Cut back on evening alcohol and late spicy meals
- Stop smoking
- Try cognitive behavioral therapy or clinical hypnosis, both of which the Menopause Society lists as low-risk options with supporting evidence
- Modest weight loss if you carry extra abdominal weight
Medical treatments
Hormone therapy is FDA-approved as a first-line treatment and is the most effective option for bothersome hot flashes and night sweats. The Menopause Society notes that benefits generally outweigh risks when it is started early in menopause, typically within 10 years of the final period or before age 60. Estrogen can be taken as a pill, patch, gel or spray, and anyone with a uterus also needs a progestogen.
On February 12, 2026, the FDA approved labeling changes that removed boxed-warning statements about cardiovascular disease, breast cancer and probable dementia from menopausal hormone therapy products. Individual risks, including blood clots and stroke, are still part of the conversation with your clinician.
For women who cannot or prefer not to take hormones, two nonhormonal medicines are FDA-approved for hot flashes: low-dose paroxetine and fezolinetant. Other antidepressants and gabapentin are sometimes used off-label.
Keeping a simple log
Before your appointment, track for two weeks how many times you wake, whether you were hot or sweating, what you drank in the evening, and how you felt the next day. If you still have periods, note the cycle day. That record helps your clinician judge how much night sweats are driving your fatigue and whether treatment is working once you start it.
It can also reveal triggers you can change yourself, such as a glass of wine with dinner or a warm bedroom, before you add any medicine.
What about supplements?
Black cohosh, soy, evening primrose oil, vitamin E and similar products are widely sold for night sweats, but the Menopause Society describes the evidence as weak or lacking, and some can interact with medicines. If you want to try one, tell your clinician first.
Through HealifyMD, a licensed clinician can review your symptoms online and discuss whether hormone therapy fits you. The hormone therapy plan is $349 for the first month (including the evaluation and baseline labs) and then $99/month, confirmed during your eligibility review; compounded hormone products are not FDA-approved.
Common questions
How long do night sweats last?
On average about seven to ten years, though many women find they ease over time and some have them much longer.
Can night sweats start before my periods change?
Yes. Many women notice them in perimenopause while their cycles are still fairly regular.
Are night sweats always caused by menopause?
No. Thyroid problems, medicines, infections and other conditions can cause them, so new or severe sweats are worth discussing with a clinician.
Does hormone therapy stop night sweats?
It is the most effective treatment and greatly reduces night sweats for most women, though it may not eliminate every episode.
Are there options without hormones?
Yes. Low-dose paroxetine and fezolinetant are FDA-approved for hot flashes, and CBT and hypnosis can also help.
Do supplements work for night sweats?
The evidence is weak for most products, and some interact with medicines.
Will they come back if I stop HRT?
About half of women have some return of symptoms, at least temporarily. Tapering is often used, though its benefit is unproven.
Sources
We cite government agencies, professional societies and peer-reviewed research. See our editorial policy.
- Hot flashesThe Menopause Society
- Hormone therapy for menopauseThe Menopause Society
- FDA approves labeling changes for menopausal hormone therapy productsU.S. Food and Drug Administration
- Menopause symptoms and reliefOffice on Women's Health (HHS)
- PerimenopauseThe Menopause Society