I won't do a jacket in the house, but I'm not turning on the heat either. I've switched from my usual shorts/tank top lounge and sleepwear to my fuzzy, fleece pajama bottoms and tank or cami top, with a nice, soft, warm cover up thingy that I bought on my way back from Kentucky. Kind of a cross between a pajama top and a robe/jacket. And soft, warm socks.
I would look funny wearing fuzzy fleecy PJs around the house, we men have to be more serious than you wimmin.
Wimmin look good wearing anything or nothing.