The first aspect that needs to be considered is the surrounding environment, such as the high indoor temperature, the covers are more breathable, which is an environmental factor, not a disease. The second aspect is to consider whether there are any internal diseases, such as tuberculosis, which can easily cause night sweats; whether there is hyperthyroidism, which can easily cause sweating due to high metabolism. The third aspect is the sweating in bed caused by plant nerve dysfunction, which is usually accompanied by distress, anxiety or stress in work life, which can be treated with oral nerve regulating drugs, such as glutathione, vitamin B1, etc.