Good thought. I've only used a sheet for a backing once. It was my very first quilt (queen size) and hand quilted. What a pain! I had to use one of those little round thingies to pull my needle out on every stitch (yes queen size). Then everyone told me sheets are not for quilts. I guess I figured that out on my own. But now that I'm machine quilting I may try a sheet for the backing again. Thanks girls for weighing in on this!