Originally Posted by T-Dubs
I used the 2.5oz XP insulation for both of my quilts. I found it to be somewhat uneven in thickness. I also ended up with about 18" of unused insulation, which I added to the foot of one quilt. A little extra warmth there would be a good thing!
I was also disappointed with the uniformity of thickness of the 3.7. It is listed a .9 inches but looks to be a range of half an inch to over an inch. It's pretty apparent some areas have more "layers" than others.
I haven't decided what to do with the leftover pieces, I like your idea.