Night sweats improve when you address the underlying cause, but several practical strategies can reduce their frequency and severity regardless of what’s triggering them. Keeping your bedroom between 60 and 67°F, avoiding known dietary triggers, and choosing breathable bedding are the most immediate steps. For persistent night sweats, identifying the root cause makes a significant difference in finding the right solution.
Why Night Sweats Happen
Night sweats aren’t a condition on their own. They’re a symptom of something disrupting your body’s temperature regulation while you sleep. The list of possible causes is surprisingly long, and narrowing it down starts with understanding the major categories.
Hormonal changes are the most common trigger. Menopause tops the list, but low testosterone in men, an overactive thyroid, and low blood sugar can all cause drenching nighttime sweating. Infections are another major category, ranging from acute viruses to tuberculosis and HIV. Certain cancers, particularly lymphoma and leukemia, can cause persistent night sweats as an early symptom. Medications are an often-overlooked cause: antidepressants in the SSRI class roughly triple the odds of night sweats, with about 22.5% of SSRI users in one primary care study reporting them. Sleep apnea, acid reflux, alcohol use, and even a room that’s simply too warm can also be responsible.
The cause matters because some of these respond to lifestyle changes while others need medical treatment. If your night sweats started after a new medication, the fix might be a dosage adjustment. If they’re tied to menopause, you have a different set of options than someone whose sweats stem from an infection.
Bedroom Temperature and Setup
Your sleeping environment is the easiest thing to change and one of the most effective. Sleep specialists recommend keeping the bedroom between 60 and 67°F (15 to 19°C). Anything above 70°F is considered too warm for quality sleep, and higher temperatures increase restlessness even in people who don’t have night sweats. Humidity compounds the problem because sweat can’t evaporate efficiently in a damp room, so a dehumidifier or fan can help in humid climates.
Beyond the thermostat, your bedding choices matter. Sheets made from moisture-wicking materials like bamboo, linen, or performance fabrics pull sweat away from your skin instead of trapping it. The same principle applies to sleepwear: lightweight, breathable fabrics outperform cotton, which absorbs moisture and holds it against you. Cooling mattress pads or toppers with gel layers can also lower the temperature of your sleep surface by several degrees. Some people find that sleeping with a lighter blanket and keeping one foot outside the covers helps with heat regulation, since the soles of your feet are one of the body’s main temperature-release points.
Food, Drink, and Timing
Certain foods and beverages act as triggers for sweating because they raise your core body temperature or stimulate your sweat glands directly. The most common culprits are spicy foods, alcohol, caffeine, high-sugar foods, and fatty or heavily salted meals. Eating large, protein-heavy meals close to bedtime can also raise body temperature during digestion.
Alcohol deserves special attention. It dilates blood vessels near the skin, which increases heat loss and sweating. It also disrupts the later stages of sleep when body temperature regulation is already at its most unstable. If you notice a pattern between evening drinks and nighttime sweating, cutting alcohol for a few weeks is one of the clearest experiments you can run. The same goes for coffee or tea in the afternoon and evening. Caffeine’s effects can linger for six or more hours, so a 3 p.m. coffee is still active in your system at bedtime.
Exercise and Stress
Regular physical activity helps regulate your body’s thermostat over time, but exercising too close to bedtime can raise your core temperature and make night sweats worse. Aim to finish vigorous workouts at least two to three hours before bed. Gentle stretching or yoga in the evening is fine and can actually promote the gradual body temperature drop that signals your brain it’s time to sleep.
Stress and anxiety directly activate the same nervous system pathways that control sweating. If your night sweats coincide with a stressful period, that connection is worth taking seriously. Deep breathing exercises, progressive muscle relaxation, or a consistent wind-down routine before bed can reduce the nervous system arousal that contributes to sweating. Cognitive behavioral therapy for insomnia (CBT-I), a structured program that retrains sleep habits and thought patterns, has been studied specifically in women with menopause-related night sweats. It doesn’t reduce the number or severity of night sweats directly, but it significantly decreases how much they interfere with daily life and overall sleep quality. That distinction matters: even when the sweating persists, better sleep around it changes how disruptive it feels.
Herbal and Plant-Based Remedies
Phytoestrogens, plant compounds that weakly mimic estrogen, are widely marketed for menopausal symptoms including night sweats. Soy isoflavones and red clover are the most popular. A large meta-analysis published in JAMA found that phytoestrogen supplements reduced the number of daily hot flashes by about 1.3 per day and modestly improved vaginal dryness. However, the same analysis found no significant reduction in night sweats specifically. The difference between hot flashes and night sweats might seem minor, but the data suggests these remedies are less reliable for the nighttime version of the symptom.
Black cohosh is another commonly recommended herb, but high-quality evidence supporting its use for night sweats is limited. If you want to try plant-based options, they’re generally considered safe for short-term use, but set realistic expectations. The effect sizes in clinical trials are modest at best, and many women in placebo groups also report improvement, suggesting that expectation and lifestyle changes during a trial period contribute to the benefit.
When Night Sweats Signal Something Serious
Most night sweats are linked to manageable causes like hormonal shifts, medications, or a warm bedroom. But certain accompanying symptoms raise the stakes. Unintentional weight loss of more than 5% over six to twelve months, persistent or recurring fevers, and swollen lymph nodes that last longer than four to six weeks are the primary red flags that point toward infection or malignancy. Lymphoma in particular often presents with drenching night sweats as one of its earliest signs.
Night sweats that are new, severe, and recurring, especially if they soak through your sheets and happen multiple times a week, warrant a medical evaluation even without other symptoms. A thorough exam typically includes blood work and a physical check of your lymph nodes. If you’ve recently started or changed a medication and your night sweats began around the same time, that timing is worth mentioning to your provider. SSRIs, blood pressure medications, and hormone therapies are among the most common pharmaceutical causes, and adjusting the dose or switching to an alternative often resolves the problem.
A Practical Approach
Start with the changes that cost nothing and take effect immediately. Set your thermostat to the 60 to 67°F range. Switch to lighter, moisture-wicking bedding. Cut alcohol and caffeine after noon for two weeks and see what changes. Move your workouts earlier in the day. These steps alone resolve night sweats for a meaningful number of people, particularly those whose sweating is triggered by environment, diet, or stress rather than an underlying medical condition.
If lifestyle changes don’t make a noticeable difference within a few weeks, that’s useful information. It suggests the cause may be hormonal, medication-related, or something else that needs professional evaluation. Keeping a simple log of when your night sweats occur, what you ate or drank that evening, your stress level, and your bedroom temperature gives both you and a healthcare provider a clearer picture of what’s driving the problem.