I think I've read that you should use a certain thread count to make quilting easier. Not sure what that is now. I remember on here or maybe another board someone said that a real quilt does not have a sheet for backing. LMAO. Quilt police are everywhere.
I've been on the hunt for vintage sheets to use but have had no luck. I think every other quilter in my area has the same idea and got there before I did.