My room under construction went down to 54 degrees overnight. The previous two nights it was dropping to 52 and 50, so it looks like there's at least some improvement there. I still have a lot of places to seal with the foam, and haven't put the insulation panels in yet. It seems a lot quieter in there too, which is good.
Today's task after church is to knock out a small brick entirely. I don't know how the builder did it but there's one brick that's not well placed. FRom the inside it protrudes such that getting insulation panels around it is impossible and from the outside it's slightly recessed. Not so bad you'd see it if you weren't looking for it, but causing me problems. Much of the mortar around it has perishe anyway, so I'm going to chisel all of the mortar out, remove the entire brick, and cement around it. That's assuming the weather stays warm enough, if it stays in the low 30s I'm not going to be making holes in my exterior wall!