There are two reasons for children to sweat a lot after sleeping: 1) parents wear too much clothing for their children and they tend to sweat after sleeping, so parents should pay attention to the room temperature and pay attention to what they are wearing. 2) sweating is mainly caused by vitamin D deficiency in the body, which leads to plant nerve dysfunction in children. This situation suggests that parents take their children to the hospital for a blood vitamin D test, as well as a test for calcium among the trace elements. If the vitamin D deficiency is not conducive to the absorption of calcium in the blood, it will lead to calcium deficiency and night sweats in children. According to the actual D concentration in the trace elements and the calcium in the trace elements, further supplementation can be given to solve the phenomenon of excessive sweating.