I typically go through a pair of LL Bean's Wicked Good slippers every year. I like these a better. They're warm and comfortable. I had to go up a half size from my normal 11.5 as half sizes aren't available... they're a bit loose but that's ok for lounging around the house.
The Sorel's have a rubber bottom that makes them good for walking to the mailbox or outside for a bit.
However, the Sorels are made in China so take that into account if you want to buy US products.