Night sweats improve when you address both the underlying cause and your sleep environment. For most people, a combination of keeping the bedroom between 60 and 67°F, choosing breathable bedding, and identifying triggers like alcohol or medication side effects can significantly reduce how often you wake up drenched. But the right approach depends on what’s driving the sweating in the first place.
Figure Out What’s Causing Them
Night sweats aren’t a condition on their own. They’re a symptom, and the list of possible causes is long. Hormonal changes during menopause are the most common reason, affecting up to 80% of women going through the transition. But infections, an overactive thyroid, obstructive sleep apnea, and certain cancers can all trigger drenching nighttime sweats. If yours started suddenly, happen regularly, or come with unexplained weight loss, fever, or pain, those are signs that something beyond your sleep environment needs attention.
Medications are another overlooked cause. Antidepressants are among the most common culprits, particularly venlafaxine, which tops pharmacovigilance reports for excessive sweating. Other SSRIs like paroxetine and fluoxetine are also frequently involved. Opioid pain medications (tramadol, codeine, oxycodone), tricyclic antidepressants, and steroids like prednisone can all cause nighttime sweating as a side effect. If your night sweats started around the same time as a new medication, that connection is worth exploring with whoever prescribed it.
Cool Your Bedroom Down
Your thermostat is the simplest lever you can pull. Sleep experts at the Cleveland Clinic recommend keeping the bedroom between 60 and 67°F (15 to 19°C). That range supports the natural drop in core body temperature your body needs to fall and stay asleep. If you’ve been sleeping at 72°F or higher, dropping even a few degrees can make a noticeable difference.
A fan pointed at the bed helps in two ways: it moves air across your skin and creates a slight wind-chill effect that accelerates the evaporation of sweat. If you share a bed with someone who runs cold, a fan on your side of the bed or a dual-zone temperature system is a reasonable compromise. Cracking a window in cooler months works similarly by keeping fresh, cool air circulating.
Choose the Right Sheets and Sleepwear
Fabric choice matters more than most people realize. Breathable materials let sweat evaporate instead of pooling against your skin, which is what wakes you up feeling clammy. After extensive testing, Wirecutter found that cotton percale and linen are the most breathable, durable options for people who sleep hot. Percale has a loose, plain weave that doesn’t cling to the body, letting air circulate freely.
Bamboo sheets, heavily marketed as “cooling,” tell a more complicated story. In testing, bamboo viscose felt cool initially but became rougher, thinner, and actually hotter to sleep on after just five washes. Tencel sheets didn’t feel especially cool either and had a rougher texture than cotton or linen. If you’re investing in new bedding specifically for night sweats, cotton percale is the most reliable performer over time.
The same principle applies to what you wear to bed. Loose-fitting cotton or linen sleepwear, or sleeping without clothes, gives your body the airflow it needs. Synthetic fabrics and heavy flannel trap heat.
Cut the Triggers You Can Control
Alcohol dilates your blood vessels and increases blood flow to the skin, which raises your surface temperature and makes sweating worse. Even a glass or two of wine with dinner can be enough to trigger a rough night, particularly if you’re already prone to night sweats. Caffeine is another common trigger for hot flashes and night sweats, though the exact mechanism is less well understood. If you’re drinking coffee or tea in the afternoon or evening, shifting your last cup to the morning is a low-cost experiment worth trying.
Spicy food raises core body temperature through a similar vasodilation effect. Heavy meals close to bedtime make your body work harder to digest, generating more heat. Eating lighter in the evening and finishing dinner at least two to three hours before bed gives your body time to cool down before sleep.
Hormone Therapy for Menopause-Related Sweats
If menopause is the cause, hormone therapy is the most effective treatment available. In multiple randomized trials, it reduced the frequency and severity of hot flashes and night sweats by 60% to 95%. That’s a dramatic improvement for women whose sleep is being destroyed nightly.
The duration matters, too. Women whose hot flashes begin before their periods stop tend to have symptoms for an average of nine to ten years. When symptoms start after the final menstrual period, the average is closer to three and a half years. That’s a long time to rely on cooling pillows alone, which is why many women and their doctors consider hormone therapy despite its well-documented risks.
For women who can’t or prefer not to take hormones, a newer non-hormonal prescription option (fezolinetant) is now FDA-approved at 45 mg once daily for moderate to severe hot flashes. It works differently from hormone therapy by targeting the brain’s temperature-regulation system directly.
What About Black Cohosh?
Black cohosh is one of the most popular herbal supplements for menopausal symptoms, but the clinical evidence is underwhelming. In a randomized trial published in the Journal of Clinical Oncology, black cohosh was not significantly better than placebo for reducing the number or intensity of hot flashes. Both groups saw about a 27% decline, suggesting a strong placebo effect. Interestingly, sweating specifically did improve more in the treatment group than the placebo group, but the overall results were weak enough that researchers couldn’t recommend it as a reliable treatment.
Practical Nighttime Strategies
Beyond the big-picture fixes, a few smaller habits can help you get through the night more comfortably. Keep a glass of cold water on the nightstand. Sipping cool water when you wake up sweating helps bring your core temperature down faster than waiting it out. Some people keep a damp washcloth in a small cooler by the bed for the same reason.
Layer your bedding instead of using one heavy comforter. A flat sheet plus a light blanket lets you shed layers in the middle of the night without fully waking up. If you’re soaking through sheets regularly, placing a towel over your pillow and mattress protects the mattress and makes middle-of-the-night changes easier.
Exercise helps regulate body temperature over time, but working out too close to bedtime raises your core temperature for one to two hours afterward. Morning or afternoon workouts are better if night sweats are a problem. Relaxation techniques before bed, including slow breathing or progressive muscle relaxation, can lower the stress hormones that contribute to vasomotor episodes, particularly during menopause.
Signs That Need Medical Attention
Occasional night sweats after a hot day or a spicy meal are normal. But the Mayo Clinic flags several patterns that warrant a visit: night sweats that occur regularly, interrupt your sleep, or come alongside fever, unexplained weight loss, localized pain, a persistent cough, or diarrhea. Night sweats that begin months or years after menopause symptoms have ended are also a red flag, since they suggest a cause other than hormonal changes. In these cases, the night sweats themselves aren’t the problem to solve. They’re pointing you toward something else that needs diagnosis.