Sleeping at night with a lot of sweat on the chest, may be caused by hyperhidrosis, may also be caused by vegetative nerve function disorders, physical weakness, etc., need to be dealt with according to the different reasons. 1, hyperhidrosis: hyperhidrosis is local or generalized skin sweating abnormally increased caused by the main manifestations of primary and secondary hyperhidrosis, in the temperature or exercise, sweating will be abnormally increased if the temperature of the room is relatively high, it may cause a large amount of sweat on the chest. If you sleep at night when the indoor temperature is high, it may cause a lot of sweat on the chest, you can use antiperspirant to improve the symptoms, can help reduce sweat secretion; 2, plant nervous system dysfunction: a long time to stay up late to work overtime or psychological stress, mental overstress, may cause plant nervous system disorders, may also induce hot flashes, excessive sweating, so sleep at night when a lot of sweat on the chest, but also accompanied by mental lethargy and weakness of limbs. It is recommended to improve the conditioning of the nerves through oral medication, such as methylcobalamin tablets and vitamin B complex tablets; 3, physical weakness: for the more serious symptoms of physical weakness of the population, there may also be more sweating, most often due to kidney yin deficiency, resulting in internal heat that leads to the exudation of fluids, there will be the symptom of night sweating, which can be manifested as a large amount of sweat at night when you sleep on the chest, accompanied by pallor and lack of strength, lack of energy and other symptoms. It is also accompanied by pale face and weak limbs, no strength and other symptoms. It is recommended to regulate through dietary methods, can eat more high-quality protein foods, such as eggs, milk, etc., but also need to actively engage in physical exercise, such as running, jumping rope; 4, other reasons: such as part of the patient due to bacterial, viral infections caused by fever manifestations, but also due to hyperthyroidism and other reasons leading to thermoregulatory center abnormalities, causing sweating, may be in the night time when you sleep with a lot of sweating in the chest, and then need to apply antibiotics for bacterial infections. At this time, antibiotics such as cefadroxil capsules need to be applied for bacterial infections, viral infections can usually be self-cured, and for patients with hyperthyroidism, medications such as propylthiouracil tablets may need to be applied for treatment.