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What Causes Night Sweats in Men?

Do you often wake in the middle of the night, drenched in sweat, no matter what time of year it is? Excessive sweating when sleeping is a common cause of restlessness.

But while we may be more likely to associate sleeplessness and excessive sweating with peri-menopausal women, night sweats in men are not uncommon. In fact, there are thought to be hundreds of thousands of people in the UK who have to live with excessive sweating when sleeping, many of whom are men.


But why is excessive sweating at night in men so common? Read on to find out about what causes night sweats in men, and some things you can do to help reduce your symptoms of hot sweats at night.

What causes night sweats in men?

If you suffer from excessive hot sweats at night, you may find that your interrupted sleep leaves you feeling fatigued, irritable and unable to concentrate throughout the day. But waking up with soaking wet sheets is not only unpleasant for you, but also for your partner. So, figuring out the likely cause may help you to better identify ways to reduce the symptoms of hot sweats in men.

Remember, if your sweats at night continue, or you become concerned, you should always visit your GP to discuss your symptoms.

So why do men get hot flashes?


Low testosterone levels

Night sweats in men over 40 can sometimes be explained by falling levels of the testosterone hormone. As you age, your testosterone levels naturally begin to fall. If levels fall at a faster rate than normal, male night sweats can occur. Other symptoms of night sweats in men over 40 can be increased body fat, erectile dysfunction and decreased libido. If you suspect this may be a likely cause, it’s a good idea to consult your GP to discuss the causes of hot sweats in men.

Low blood sugar

If your blood sugar or blood glucose level dips at night, it can cause the symptoms of nocturnal hypoglycaemia – including headaches, hot sweats in men and sleeplessness. Often associated with diabetes, low blood sugar is one of the likely causes of night sweats in men over 50.

Illness or fever

If you are suffering from a low-grade fever, even if you don’t feel particularly unwell, you may find that just a couple degrees increase in body temperature can lead to you experiencing hot sweats at night. More serious illnesses, such as many autoimmune disorders, can also lead to symptoms of male night sweats.

Side effects of medications

Many prescribed medicines such as antidepressants, steroids and some cancer treatments, can cause hot sweats in men. If you are concerned that your medication may be the cause of your night sweats, talk it over with your GP.

Other triggers of hot sweats in men

Did you know that there are loads of commonly consumed things that can cause night sweats? Alcohol, caffeine, spicy foods or medication can cause excessive sweating when sleeping by preventing your liver from working to produce glucose, therefore causing a blood sugar dip. Extreme exercise in the evening can also have a similar effect and heighten the symptoms of night sweats in men.

Ways to combat male night sweats

Are you wondering how to stop night sweats in men? Unfortunately, there is not a simple cure for many of the causes of night sweats in men. However, there are ways that you can at least try to lessen the discomfort caused by excessive sweating when sleeping.

You can keep your bedroom cool by opening a window or using a fan to circulate the air. It is also recommended that you avoid spicy foods, alcohol and exercising immediately before bedtime. Also, keep a glass of cold water next to your bed so you can take regular sips throughout the night.

Looking for a long-term solution to hot sweats in men? Choose bedding made from natural fibres that will pull moisture away from your body and help to regulate your temperature – an all-natural, sustainable solution to night sweats in men. In particular, wool duvets and bedding are known for their ability to keep you warm and dry, even when it comes to excessive hot sweats at night in men.

When suffering with night sweats in men, you can often find that the resulting sleeplessness affects every element of your life, from your ability to concentrate at work to how you manage relationships with friends and family. By trying to work out a likely cause – getting help from your GP if necessary and trying a few ideas to reduce the symptoms of hot sweats in men – you should find that your quality of sleep improves in no time.

Are you waking up sweating in the middle of the night? Follow our steps on how to stop night sweats in men for a happier, healthier sleep. For more information about excessive sweating while sleeping, our Night Sweats and Sleep page has more advice on the causes of night sweats in men, women and children, as well as more tips on how to stop night sweats in men.