A person who suffers from excessive sweating while sleeping will sometimes experience a higher core body temperature while they are asleep. This can sometimes be felt through actual physical touch and can cause quite a problem with sweating. While this is not a form of primary hyperhidrosis it can be caused by other underlying causes which make the body temperature rise. These could include such things as an infection of some type, medications that a person is taking, overactive glandular problems such as those caused by the thyroid gland or perhaps another disease, such as diabetes. If you have a problem with night sweats then finding out what the underlying cause is will go a long way in finding a permanent cure for the issue and ending the night sweats once and for all.