Sleep hyperhidrosis may be caused by medication, like prescription medicines. If you are on medication, find out from your doctor whether this is the case for you. Other possible causes include menopause, nerve damage, obesity and metabolic issues.
The next step would be to figure out which parts of your body are sweating excessively when you wake up at night. Sleep hyperhidrosis usually happens all over the body. For some people however, sleep hyperhidrosis can also be more focalized in areas like their underarms, face, underarms or feet.
There are many treatment methods you can try. The most common solution to excess sweating is stronger perspirants, which can be applied to the areas that are sweating excessively. Do realize though that antiperspirants have been known to cause skin irritations to some people.
Sleep hyperhidrosis can also be treated by botox injection, but I would not recommend them since they can be dangerous and would need to consistently taken. This treatment method involves injecting chemicals into your body that are meant to prevent your body from releasing chemicals that trigger your sweat glands.
Passing torch battery electric currents through your body to shut down certain sweat glands in your body is also another way to treat sleep hyperhidrosis. This procedure is called Iontophoresis.
A new method that I have used to get rid of my facial sweating is by natural remedies, that involve using readily available products at home that are applied every morning and night. I also changed my diets to avoid food that will worsen my excess perspiration, and instead choose diets that contain food to reduce facial sweating.
Finally, you can also try surgery, but this should always be used as a last resort method. It involves removing the nerves that affect the sweat glands.
Whichever method you choose, remember that sleep hyperhidrosis can be treated, and nobody should have to live with this disorder.