You won't be needing that down comforter if you've got Tristan snoozing beside you. He might be a dog but he's got a polar bear coat - not that I've ever felt a polar bear coat. I imagine it would be a lot coarser than Tristan's downy fur but hey, what do I know? Maybe polar bear coats are as soft as cotton balls.
I'm pretty sure, though, that Tristan is significantly more friendly than most polar bears so it would likely be a lot easier to invite him onto your couch to warm your lap in the winter.
Tristan will be up for adoption shortly, probably by the weekend, from Toronto Animal Services adoption website.