I am making lap quilts for the nursing home and want to use fleece blankets for the backing. I want them to be warm as I know that many oldsters are frequently cold. Should I use batting or flannel in the middle so they will be warmer? Does the fleece really stretch as badly as I've been reading? How should stitches be adjusted to accomodate the stretch? Any other help will be greatly appreciated. Thanks. Marge L.