How To Stop Sweating At Night? What You Need to Do

Waking up drenched in sweat is not just uncomfortable — it disrupts sleep and leaves you exhausted the next day. Night sweats are common, and in most cases, the cause is something simple you can fix at home, like your bedding, room temperature, or what you ate before bed. To stop sweating at night, start by cooling your sleep environment, choosing breathable fabrics, and identifying any underlying triggers like alcohol, spicy food, or hormonal changes. If those changes do not help within a few weeks, or if you have other symptoms like fever or unexplained weight loss, see a doctor to rule out a medical condition.

What Causes Night Sweats in the First Place?

Your body regulates temperature through a process called thermoregulation. During sleep, your core temperature naturally drops slightly. When something interferes with that drop, your body sweats to cool down.

Common causes include your sleep environment, heavy blankets, and synthetic pajamas that trap heat. But internal factors matter too. Hormonal shifts — like perimenopause, menopause, or andropause — can trigger sweats. Certain medications, including some antidepressants and hormone therapies, list night sweats as a side effect.

Less common but more serious causes include infections, thyroid problems, and certain cancers. This is why doctors take persistent night sweats seriously. If you sweat through your clothes every night for weeks without an obvious explanation, that warrants a medical evaluation.

How To Stop Sweating At Night: Start With Your Bedroom

Your sleep environment is the first place to look. The ideal sleeping temperature for most adults is between 60 and 67 degrees Fahrenheit. If your thermostat is set higher, your body has to work harder to cool itself.

Lower the thermostat an hour before bed. Use a ceiling fan or a bedside fan to keep air moving. Even a small drop in room temperature can make a noticeable difference.

Your mattress matters too. Memory foam mattresses retain body heat more than innerspring or hybrid models. If you cannot replace your mattress, use a cooling mattress pad or a breathable mattress protector designed to wick moisture away.

Blackout curtains can help if your room heats up from morning sun. But the goal is to keep the room cool all night, not just at bedtime.

Choose Bedding and Pajamas That Breathe

Fabric choice directly affects how much you sweat at night. Synthetic materials like polyester and nylon trap heat and moisture against your skin. Natural fibers allow air to circulate and moisture to evaporate.

Cotton is a reliable choice. It is breathable and absorbs sweat. Linen is even better for hot sleepers because it has an open weave that allows maximum airflow. Bamboo-derived fabrics are also popular for night sweats because they are moisture-wicking and soft.

Your pillow matters too. Standard pillows hold heat. Look for pillows labeled “cooling” or made with gel-infused foam. These materials are designed to disperse heat rather than trap it.

Wash your bedding weekly. Sweat and body oils build up in fabrics, which can make them less breathable over time. Fresh bedding also simply feels cooler.

Adjust What You Eat and Drink Before Bed

What you consume in the hours before sleep can trigger sweating. Alcohol is a major culprit. It dilates blood vessels near the skin, which increases heat loss and can cause sweating. Many people notice night sweats after drinking even moderate amounts of alcohol.

Spicy foods can also raise your core body temperature. Capsaicin, the compound that makes chili peppers hot, activates heat receptors in your body. This can lead to sweating that lasts for hours.

Caffeine is another trigger. It stimulates your nervous system and can increase heart rate and body temperature. If you are prone to night sweats, avoid caffeine after mid-afternoon.

Heavy meals close to bedtime raise your metabolic rate as your body digests food. This produces heat. Try to finish your last meal at least three hours before bed.

When Hormones Are the Cause

Hormonal changes are one of the most common causes of night sweats in people aged 35 to 65. For women, perimenopause and menopause cause estrogen levels to fluctuate. These fluctuations affect the hypothalamus, the part of the brain that regulates body temperature.

Men can experience night sweats too. Testosterone levels decline gradually with age, and some men experience hot flashes similar to those in women. Low testosterone can also affect sleep quality, which may worsen the perception of night sweats.

Thyroid disorders can also cause sweating. An overactive thyroid — hyperthyroidism — increases your metabolic rate, which raises body temperature and causes sweating. If you have other symptoms like rapid heartbeat, weight loss, or anxiety, ask your doctor about thyroid testing.

Hormone therapy may help if hormonal changes are causing severe night sweats. But this is a decision you should make with your doctor. Hormone therapy carries risks, and it is not right for everyone.

Medical Conditions That Cause Night Sweats

Sometimes night sweats signal an underlying medical condition. Infections are a common cause. Tuberculosis is classically associated with night sweats, but other infections can cause them too, including endocarditis — an infection of the heart valves — and osteomyelitis, a bone infection.

Certain cancers, particularly lymphoma, can cause night sweats. This is why persistent night sweats should never be dismissed as something you just have to live with.

Autoimmune conditions like rheumatoid arthritis and lupus can also cause night sweats. So can neurological conditions that affect the autonomic nervous system, which controls sweating.

Sleep apnea is another possible cause. When breathing stops briefly during sleep, your body releases stress hormones that can trigger sweating. If you snore heavily or feel exhausted during the day, sleep apnea may be worth investigating.

Do not try to diagnose yourself based on this list. These conditions are relatively rare. But if your night sweats are persistent, heavy, or accompanied by other symptoms, a medical evaluation is the right step.

Medications That Can Cause Night Sweats

Several common medications list night sweats as a side effect. Antidepressants, particularly SSRIs and SNRIs, are well-known culprits. Some people experience sweating as their body adjusts to a new medication. Others have it as an ongoing side effect.

Hormone therapy medications can cause sweating. So can some diabetes medications, particularly those that lower blood sugar. Low blood sugar — hypoglycemia — triggers adrenaline release, which causes sweating.

Steroids and some pain medications can also cause night sweats. If you started a new medication around the same time your night sweats began, talk to your doctor. Do not stop taking a prescribed medication on your own. Your doctor may be able to adjust the dose or switch you to an alternative.

Lifestyle Habits That Make Night Sweats Worse

Exercise close to bedtime raises your core temperature. Your body needs time to cool down after a workout. If you exercise in the evening, finish at least two hours before bed.

Stress and anxiety can trigger sweating. Your body’s stress response activates the sympathetic nervous system, which stimulates sweat glands. If you notice that your night sweats happen more on stressful days, relaxation techniques before bed may help.

Smoking is another factor. Nicotine stimulates the nervous system and can cause sweating. Quitting smoking improves many aspects of health, including sleep quality.

Being overweight increases the likelihood of night sweats. Excess body fat acts as insulation, making it harder for your body to release heat. Weight loss, if appropriate, can reduce night sweats.