Hello everyone. Can anyone tell me why the child sweats so much? When …

Hello everyone. Can anyone tell me why the child sweats so much? When he sleeps, there's a puddle under him. He sweats only on his head. The pediatrician suggested that it might be due to vitamin D deficiency, but we took tests and everything is normal. However, I am still worried about how profusely he sweats. The temperature in the room is usually not higher than 23-24 degrees Celsius, and I don't cover him up.