The Daily Miracle

Night Sweats in Men: Causes and When to Worry

Published
October 05, 2026

4 Reasons on What Causes Night Sweats in Men

Night sweats in men usually come from something simple and fixable, like a room that runs too warm or sheets that trap heat against your skin. Most men who wake up drenched can trace it back to their sleep environment, alcohol, or stress rather than a serious health condition.

That said, a smaller number of cases point to something that needs medical attention. This guide walks through the common fixable causes first, then covers the medical causes worth knowing about and the specific signs that mean you should see a doctor.

What Counts as a True Night Sweat

Everyone sweats a little during sleep, especially in a warm room or under heavy blankets. A true night sweat goes further than that. You wake up with soaked sheets or sleepwear, sometimes needing to change clothes or bedding before you can get back to sleep.

If adjusting your room temperature and switching to breathable bedding solves the problem, you're likely dealing with an environmental cause rather than a medical one. If the sweating continues regardless of those changes, it's worth looking at other possible triggers.

Simple, Fixable Causes of Night Sweats

Most night sweats in men trace back to one of a few everyday factors. These causes respond well to small changes and rarely need medical treatment.

Room temperature that runs too warm prevents your body from cooling down the way it needs to for restful sleep
Heavy or non-breathable bedding traps heat and moisture against your skin instead of letting it escape
Alcohol relaxes blood vessels and raises skin temperature, making it one of the most common and most preventable causes of night sweats in men
Spicy food or caffeine close to bedtime can raise your core temperature right as you're trying to wind down
Stress and anxiety trigger the same sweat response during sleep that they do during the day

A peer-reviewed study on sleep and thermoregulation explains that your core body temperature naturally drops as part of falling asleep, and anything that interferes with that drop, including a warm room or heat-trapping bedding, can trigger the body's sweat response as a way to compensate.

Medical Causes Worth Knowing About

A smaller share of night sweats in men comes from an underlying medical cause rather than the environment. These are worth understanding, even though most men won't need to worry about them.

Low testosterone becomes more common with age and can disrupt the body's temperature regulation, leading to sweating episodes similar to the hot flashes some women experience during menopause. Research suggests a meaningful share of men over 45 experience some degree of low testosterone, though not all of them develop night sweats as a result.
Sleep apnea interrupts normal breathing during sleep, which can trigger stress hormone spikes that lead to sweating. Men are diagnosed with sleep apnea more often than women, and snoring or waking up gasping for air alongside night sweats can be a sign worth mentioning to a doctor.
Medication side effects show up with several common drug categories, including antidepressants, pain relievers, and some diabetes medications. If night sweats started around the same time as a new prescription, that timing is worth flagging to whoever prescribed it.
Infections like tuberculosis or other bacterial illnesses can cause night sweats, usually alongside other symptoms like fever or feeling generally unwell rather than as a standalone symptom.

The American Academy of Family Physicians' clinical guidance on evaluating night sweats notes that distinguishing an environmental cause from a medical one usually starts with a careful history. Simply put, a doctor will look at what else is going on alongside the sweating before jumping to any single explanation.

It's also worth noting that the evidence connecting some of these causes to night sweats is weaker than headlines suggest. Many proposed links come from reported associations rather than tightly controlled studies, so a specific cause isn't always easy to confirm even with medical evaluation.

The Red Flags That Mean You Should See a Doctor

A cluster of symptoms, sometimes called "B symptoms" in a medical context, signals that night sweats deserve a closer look rather than a wait-and-see approach.

Night sweats paired with an unexplained fever that doesn't go away
Noticeable weight loss without any change in diet or activity
Swollen lymph nodes, especially in the neck, armpits, or groin
Night sweats that persist for several weeks despite environmental changes
Fatigue, weakness, or feeling generally unwell alongside the sweating

Mayo Clinic's overview of night sweats lists these same red-flag symptoms as the key signals that warrant a visit to a doctor rather than continuing to manage the symptom at home. If you notice any of these alongside your night sweats, it's worth scheduling an appointment rather than waiting to see if things improve on their own.

How Common Is This, Really

Night sweats affect a meaningful share of adult men, though exact numbers vary depending on how researchers define the symptom and which age group they study. Middle-aged men are more likely to report night sweats than younger men, which lines up with the age-related hormonal changes mentioned earlier.

Men also tend to be less likely than women to bring night sweats up with a doctor, which means some fixable or treatable causes go unaddressed longer than they need to. If your night sweats are affecting your sleep quality night after night, it's worth mentioning even if none of the red flags above apply to you.

What You Can Do Tonight

Before assuming the worst, most men can make real progress with a few environmental changes tried together rather than one at a time.

Start by lowering your bedroom temperature and checking whether your sheets and comforter are trapping heat. Breathable, moisture-wicking cooling sheets help pull sweat away from your skin instead of letting it build up against your body overnight.

Cutting back on alcohol and spicy food in the hours before bed often makes a noticeable difference within just a few nights. Pairing lighter sleepwear with breathable bedding gives your body a better chance to regulate its own temperature the way it's designed to.

Frequently Asked Questions

Can Stress Alone Cause Night Sweats in Men?

Yes. Stress and anxiety trigger the same sweat glands during sleep that they activate during the day, and this can happen even without any other underlying condition.

Does Alcohol Really Cause Night Sweats?

It can. Alcohol relaxes blood vessels and raises skin temperature, which is one reason many men notice their night sweats improve simply by cutting back on evening drinking.

Is It Normal for Night Sweats to Get Worse With Age?

Age-related hormonal changes, including declining testosterone, can make night sweats more common in middle-aged and older men, though most cases still respond well to lifestyle and environmental adjustments.

Couple on a bed with a gray electric blanket and 'Bedding' product description.

Bringing It All Together

Most night sweats in men come down to something you can fix tonight, whether that's your room temperature, your bedding, or a drink you had too close to bedtime. A smaller number of cases point to something medical, and the red flags above are the clearest signal for when that's worth checking out.

Breathable, well-designed bedding won't solve every cause of night sweats, but it removes one of the most common contributing factors. Check out what Miracle Made has to offer if your current setup might be working against you.

Disclaimer: Antimicrobial finish helps protect the fabric from odor-causing bacteria. Does not protect users against bacteria or other disease organisms.

Sources:

Night Sweats: Causes & Medical Red Flags — Mayo Clinic

Diagnostic Approach to Night Sweats — American Academy of Family Physicians

Sleep Thermoregulation & Nocturnal Hyperhidrosis Study — National Institutes of Health (PMC)