I really like Ralph.. he's so cheery. I can remember years ago they made what my Grandmother called "sheet blankets" they were in essence a sheet sized blanket of flannel, or an adult sized receiving blanket.
She loved using those for "summer weight" quilts when they started showing wear.. and lacking that would put a couple of sheets that were starting to show wear between the layers of a quilt. I love the idea of a flannel back.