Could it be a health issue? I don’t know what conditions might cause symptoms like that or anything, but maybe it’s worth checking with a doctor?
I won’t speak specifically about this case, but I do know that lots of people sweat a lot in their sleep, and it’s just how their body works. Now there’s all sorts of bedding and even
cool bedding for hot sleepers. Most likely it’s made with some materials that help you feel more comfortable than regular bedding.