Sudoración nocturna

Night Sweating in Winter: Causes and Solutions

Night sweats in winter

You cover up, it's cold... and in the middle of the night you wake up drenched in sweat. Sound familiar? You're not alone.

The night sweats in winter is much more common than it seems and, although it is not always serious, it can be annoying and disturb the quality of sleep.

The funny thing is that the sweating appears just when you least expect it: in a cold room, in the middle of winter. Why does it happen? How can you avoid it? We explain it step by step.

Most common reasons for night sweats

Hormonal changes and stress

Even if it's cold, your body may react as if it were hot if you are going through anxiety, stress or hormonal changes. These factors alter your nervous system and can trigger night sweats without warning.

Room temperature

Many times, the cause is simpler than it sounds: you're sleeping with too many layers or in a bedroom that's too warm. Even a thick blanket or comforter without breathability can cause a greenhouse effect under the sheets.

Keys to avoid night sweats

Choosing the right bedding

Avoid sheets and covers made of polyester or synthetic fabrics. Ideally, choose natural, breathable materials such as cotton, linen or bamboo, which allow air circulation and help regulate body temperature during the night.

Breathable sleepwear

Sleeping in technical clothing can also make a difference. Pyjamas made from functional fabrics, such as those offered by Sutran, allow sweat to evaporate without getting trapped on the skin. So you stay dry, comfortable and cool throughout the night.

How heating affects night sweats

Common heating mistakes

Turning the heat up just before bedtime is a common mistake. The body needs to lower its temperature to fall asleep, and if the room is too warm, the thermal regulation system kicks in to cool the body... by sweating.

Expert advice

Ideally, keep the bedroom between 17°C and 19°C, use a light but warm comforter, and leave a small air inlet in the room. This helps to avoid temperature peaks that trigger sweating.

When to see a specialist

Warning signs

If you wake up soaking wet several times a week, with no apparent cause and accompanied by other symptoms such as fever, weight loss or constant insomnia, it is time to see a doctor. Persistent night sweats may be a sign of something more serious.

Professional treatment

The specialist will assess your habits, sleeping environment and general health. In some cases, he or she may refer you to a dermatologist or endocrinologist to rule out hormonal or thermoregulatory problems.

If night sweats in winter are affecting your sleep, don't let it go. Sometimes a simple change in the way you sleep or the fabrics you wear can make all the difference. Sleeping well is living better.

Want to improve your nights? Discover our breathable sleepwear in the collection of Sutran technical undershirts and say goodbye to night sweats.

Óscar Deumal profile picture

Óscar Deumal

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Óscar Deumal es ingeniero textil y Director de Tecnología e I+D en Sutran Technology.
Con más de una década de experiencia, ha sido pieza clave en la creación y consolidación de prendas inteligentes antisudor y antiolor que han revolucionado el sector textil en España y a nivel internacional.