It's 28 here in Old Town FL, it was 23 the other day. My crestie (who is technically a powder puff but shaved like a hairless) sleeps with a heat pad on his bed, and likes to sit *right* in front of the space heater... However, he doesn't mind the cold outside one bit. He doesn't even seem to notice. I started out with him wearing a sweater when I took him out, he'd just do his business and be ready to go in. I took him out one night in a hurry and didn't put his sweater on...took me 10 minutes to talk him back inside...he was running around like a squirrel on crack. He apparently LIKES being naked and cold. :P But he keeps himself moving...at near light speed. lol