I was hoping that her breathing issues may just be a side effect of the shed, but is open-mouth breathing common? That's what worries me and makes me think it is an RI.

While I am dealing with a screen top for my enclosure, what are some ways I can keep the humidity up and constant? I have read about putting a damp towel or plastic wrap over part of the enclosure, but I also am worried about air circulation, and don't want my snake to be breathing stagnant air.

I feel like a heating lamp dries out the air more than a UTH with thermostat would, so would you recommend switching to that as my heat source instead of a lamp? Or would it be okay to keep both, just regulate them?