1. What is the reason why babies sweat a lot while sleeping? The baby sweating a lot while sleeping may be caused by the following reasons: 1. The room temperature is too high: If the room temperature is too high, the baby will feel stuffy and sweat easily. 2. Overdressing: If parents dress their baby too much, it is easy for the baby to feel stuffy and sweat. 3. Immature nerve development: Newborns’ nerves are not fully developed, their body temperature regulation ability is poor, and they sweat easily. 4. Health problems: Certain health problems such as colds, fevers, heart diseases, etc. may also cause your baby to sweat a lot while sleeping. 2. How to prevent and treat babies