Children sweat more at night, this situation is mainly caused by the following reasons. The first is due to physiological reasons, children are relatively adult metabolism is more vigorous, plant nerve development is less perfect, so children sweat more than adults, especially when sleeping, the central nervous system of the brain is not well developed, so there is more sweating in bed. But this situation is often more sweating within 1-2 hours after falling asleep, and very little sweating in the second half of the night, which is a physiological phenomenon and does not need to be dealt with. The second is due to pathological causes of sweating, sleep sweating, sweating all night, is caused by vitamin D deficiency rickets. For this situation, you can check the blood vitamin D and blood calcium levels, and confirm the diagnosis of vitamin D deficiency rickets, to give the child timely supplementation of vitamin D and calcium gluconate oral solution and other calcium supplements.