Sweating after waking up from a sleep is mainly considered and environmental factors, mental stress, fever, autonomic dysfunction, and so on. 1. Environmental factors: when the patient sleeps in the surroundings of the environment temperature is high, due to environmental factors will appear waking up a sleep on the symptoms of sweating. 2. Nervousness: If there is nervousness and fear before going to bed, it will cause sympathetic excitation and sweating symptoms. 3. Autonomic dysfunction: such as pre-menopausal syndrome, hyperthyroidism, etc., affecting the function of the autonomic nervous system, there will be sweating after waking up. If sweating occurs after waking up and affects the patient’s daily life and sleep, the patient should go to the hospital in time to get a clear diagnosis.