Babies sweat more when they sleep, you need to consider the following reasons: First, if the baby wears more clothes, covers a thicker blanket, the indoor temperature is higher, may lead to more sweating, is a physiological sweating, is not the need for special treatment. Second, babies with vitamin D deficiency, or other trace elements, half a month after birth should be routinely supplemented with vitamin D until the age of two weeks, unless the summer sun is more, can be suspended for a period of time. Vitamin D deficiency will cause the baby to sweat more. Third, the body is weaker. If your baby has been repeatedly sick in recent times, has a poorer constitution, and has poorer resistance, he or she may sweat more, and will need to take oral Yu Ping Feng granules to regulate immunity. Also avoid getting cold as much as possible to avoid respiratory infections.