Sleep hyperhidrosis is defined as periods of significant sweating at night that soaks your bedding or bed clothes. It is a common occurrence that affects most people at some point.
The disorder is characterized by profuse sweating that happens while sleeping, and may not happen while awake. The heavy sweating while sleeping can cause a person to wake up due to discomfort.
Although it may be somewhat uncomfortable, night sweats are not typically a symptom of a serious medical condition. It is often brought on by something simple like being in to warm of a room, or having too many blankets.
The sympathetic nervous system regulates our sweat glands which are located all over the body. When night sweats (sleep hyperhidrosis) do happen, it is usually due to thermal (heat-related) sweating.
Excessive sleep hyperhidrosis can sometimes be caused by a chronic or febrile illness. Some patients appear healthy but may suffer from a subtle and undiagnosed autonomic disorder. This could occur at any age, but is most likely to occur in young adults. An imbalance of hormones could cause hot flashes and night sweating.
Women who are smokers experience it twice as often.
See a physician if you suffer from night sweats on a regular basis and it is interrupting your sleep. Treatment is focused on the underlying cause, once it is determined.
Occasionally, night sweats are a sign of a serious condition, like cancer — particularly lymphoma — or an infection. However, in these cases, sleep hyperhidrosis is often accompanied by a fever as well as sudden weight loss.
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