I would say approx 40deg, note, that it should fit 5'8" tall or less. I made it for myself, but I mistakenly made it about 2"-4" too short on the length. It has some minor imperfections, mainly the straightness of the stitching. Otherwise, I feel its a solidly built quilt.
Do a facebook search for Michael Fogarty, and you can view pictures of the quilt.