When I'm carrying a "normal" bag I always leave it on the hall table in the foyer when I come home from work. But when I'm using one of my B bags I leave it in my dressing room with the door shut, lest the husband or dog accidentally harm it in one way or another! This last week it's been in the low 40s at night. I've been getting up in the middle of the night to turn our central heating off, making the husband want to murder me. I keep wondering, if the central heating makes me wake up with dried out sinuses and skin, what's it doing to my precious, unprotected 2005 B leather? Am I just being silly or do any of you worry about this too?