I'm leaning towards flannel for the backing on all the grandkids quilts-I did one and I'm hooked. I even enjoyed handstitching the binding while snuggling with the quilt. I just wish there were a better selection of reasonably priced flannel. I can't imagine how cuddly making a total flannel quilt would be. My next boy quilt has squares of cotton and flannel, but I am having a hard time finding plaid flannel for the back.