Children tend to sweat more at night when they are in a deep sleep, which is a higher percentage of the night for them. Since their bodies aren’t fully developed or mature yet their temperature regulation and sweat glands aren’t the same as adults. Add that to a heavy pair of pajamas, a warm room or too many blankets and you the chances of sweating while sleeping are even greater.
If you adjust the environmental factors but your child is still sweating excessively at night or if you notice any other symptoms along with this it is important to check with your pediatrician to make sure there isn’t another issue that needs to be addressed. In most cases night sweats in children isn’t something to be too concerned about, but you should still monitor the frequency and severity of the sweating. While there are many harmless causes, this can also be a sign of a medical condition.