Night sweating is increased overnight sweating that may occur for various reasons. If your bedroom is too hot or your pajamas are too warm it may cause sweating which is pretty normal thing and can easily be stooped.

But what can be considered as real night sweating are increase heat waves that affect your body while you sleep and have nothing to do with temperature in the bedroom. This will usually make your sheets all wet and can be caused by variety of reasons.

People usually link night sweating with nightmares. It happens a lot usually if the nightmare is vivid and intense, you usually have problem waking up from it and you are all in sweat. These nightmares can also cause panic attacks during your sleep which is also one of the reasons for sweating. Increased use of alcohol can also cause night sweating which is especially serious in people that have problems with snoring.

Your nervous system regulates the body temperature and it changes during the night. Body temperature lowers as the night passes and it is lowest around 4 am. After that is starts to rise again and this may cause sweating.

Overnight sweating can be a following symptom of dangerous diseases and health conditions and therefore it is very important to try doing something to solve the problem or see your doctor to determine the cause behind it.


Idiopathic hyperhidrosis 
Hyperhidrosis is a disorder of increased sweating that just happens without any visible cause, infection, neurological or cardiovascular disorder. The abnormal sweating may appears on one specific body part but also the whole body. Hyperhidrosis is a disorder that affects about 3 percent of world population and is usually followed with yeast infections, skin problems and body odor.

Some kinds of infections can cause night sweating, it is usually leading symptom of HIV infection, tuberculosis, as well as endocarditic bacterial infections.

Hormone imbalance
Night sweating can also be caused by hormonal changes and it is very common in women during menopause. Various studies confirm that over 40 percent of women in menopause deal with night sweating and over 20 percent suffer from so called heat waves only during the night. The lower amount of hormones as estrogen and progesterone are the main reason for increased sweating in menopause.

There are times when psychological disorders can cause increased and abnormal sweating. A variety of researches show that one of possible causes of night sweating can be anxiety. It can be linked with nightmares or not but it can also intensify the anxious feeling because you may start to worry about what you sweat about and it can worsen your condition with anxiety.

Sleep apnea is a condition of shallow breathing or pauses in breathing during sleep. Having problems with breathing in your sleep can lead to increased overnight sweating and you may also deal with common headaches dry throat and bad mood during the day. Sleep apnea is a serious disorder that requires proper medical attention.

Overnight sweating is early symptom of some kinds of cancer as lymphoma or leukemia. However, there is no need for panic because cancer usually shows other symptoms as tiredness, loss of appetite and unusual loss of weight.

Side effects of medication
Overnight sweating can be a side effect of various kinds of medication. Antidepressants, medication for hormonal regulation, diabetes medication but also aspirin can be a reason you sweat during your sleep.

Hyperthyreosis is a condition where your thyroid gland is not working properly and is producing more hormones than normal. Sweating in your sleep is one of common symptoms of hyperthyreosis but it is usually followed with tiredness and weight loss.

Sweating is common symptom of hypoglycemia. When the level of glucose in your blood is low then you may sweat during your sleep but it will usually be followed with other symptoms like shivering, vertigo and confusion.

Hodgkin’s lymphoma 
Hodgkin’s lymphoma is a kind of cancer of lymphatic tissue that originates from lymphocytes. It usually shows as painless swelling in the areas of the neck and armpits followed with shortness of breath and cough. Night sweating is a common symptom of Hodgkin’s lymphoma but it usually goes with weight loss and tiredness.


Generally sweating overnight is not serious condition. It is mostly because you are hot, your bed is not well placed, your covers are too thick, you are overdressed, and there is not enough air in the bedroom you ate too much or had too many coffees before you went sleeping.

Before you panic make sure you make some changes in your lifestyle that can help you deal with sweating in your sleep.DANGEROUS-CAUSES-OF-NIGHT-SWEATING-2

If you want to sleep better you need to rearrange the things in your bedroom, position the bed on good place and use sheets and covers made of natural materials. Adjust the temperature in your bedroom so that you are comfortable. You can put some plants that may help you sleep better. Don’t eat before you go to sleep and if you do avoid foods that are full of fats and sugar. Alcohol and coffee can also cause night sweating so make sure you avoid them also.


Even though night sweating is mostly harmless condition you need to see a doctor if it starts to affect on the quality of your life.

If you notice some of listed side symptoms you need to see a doctor immediately. If you wake up in sweat every night and symptoms as increased body temperature, fever, cough, weight loss are following the sweating.

Your doctor will do tests that are necessary and see if you are sweating in your sleep for some serious reason and help you get through this problem.

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