Dry mouth

This is my second time writing. This morning I woke up with a very dry mouth. Will the heated air be better? I don't like really hot air. I like a window open even in the winter!

Also, does anyone actually sleep on their side? It seems if I try then the mask pushes down on my face more. So last night wasn't a good night as I woke up on my side and wasn't rested.

I am trying to accpet this, but as ya'll know easier said then done. Thanks