The humidity and temps are both good. Ambient in our house doesn't drop below 78. She has a 90 hot spot, humidity is hanging good. It isn't too wet in there. She only whistled twice and both times were right after I picked her up. I didn't hear anything more during the 30 mins or so that I had her out. She curled up around my arm and pretty much stayed relaxed. Maybe it was just stress? i didn't see any mucas or saliva at all around her nose or mouth.