Sweating at night may be related to high room temperature, prolonged mental stress, or it may be caused by systemic fungal infections, tuberculosis and other diseases. Sweating is a means for the body to regulate body temperature. When the environment is hot and the body temperature rises, the body will emit heat in the form of sweating to regulate the body temperature balance. Sweating at night can be caused by too thick a blanket or too high an indoor temperature. Secondly, prolonged mental tension and anxiety may also cause sweating while sleeping at night. In addition, diseases such as systemic fungal infections and tuberculosis may cause excessive sweating at night, but they are usually accompanied by other symptoms such as fatigue and cough. In addition, perimenopausal women are also prone to sweating in their sleep. If night sweating is not accompanied by other symptoms, you can first lower the room temperature and maintain a positive and optimistic mindset. If the symptoms of sleep sweating cannot be relieved, it is recommended to seek medical attention to identify the cause of the disease and follow the doctor’s instructions.