The reasons for sleeping in the middle of the night in winter and sweating all over the body are physiological factors, such as wearing clothes too thick, too thick quilt, etc.; pathological factors, such as diabetic patients with nocturnal hypoglycemia, tuberculosis and so on. 1. Physiological factors: if the patient sleeps in the middle of the night in the winter sweat, then the first consideration is caused by physiological factors, such as wearing clothes too thick, quilt is too thick and so on. Wearing clothes or quilt too thick will make the body temperature is too high, then can only rely on sweating to cool down. 2. Pathological factors: if the patient feels like sleeping in the middle of the night in winter will sweat, there may be due to pathological factors. Such as diabetic patients with hypoglycemia at night, there can be symptoms of night sweating. Tuberculosis patients, due to the tuberculosis bacteria can lead to vegetative nerve dysfunction, and the phenomenon of night sweating. If the patient repeatedly appeared in the winter sleep in the middle of the night sweating symptoms, should be timely to the regular hospital, under the guidance of a professional doctor symptomatic treatment, so as not to delay the condition, resulting in adverse consequences.