Well, the house is now very, very warm. But we believe it to be free of bedbugs. I've reassembled my room, and we're wrapping the mattresses "just to be sure" ... even though no bedbugs were ever detected in our bedrooms.
There is a kinda gross futon on the 3rd floor I kind of don't want to take out of the house through the hallways. I wonder if it could be safely flung out the window somehow.