Please, please don't take this wrong...This by all means is nothing against those of you who use sheets for backing. This is just curiosity on my part. I've seen numerous posts on here saying you've used sheets for backing fabric. I understand the financial point of using sheets, but...Are these sheets 100% cotton? Are they of the same quality as quilting cotton? Are they woven the same as quilting cotton? I have 100% cotton Walmart sheets on my bed that are way higher thread count than my quilting cottons. After many washings, the sheets still aren't as soft/pliable as my fabrics. All of the time I spend planning, purchasing, cutting, piecing my quilt, I would never consider using sheets for backing fabric. I guess I'm just funny that way. I use 100% cotton fabric (no poly/cotton), 100% cotton thread (no cotton covered polyester) and Warm and Natural batting, for the following reasons: 1) Poly/cotton fabric doesn't get as soft as cotton, no matter how much it's laundered. 2) Using polyester thread when piecing/quilting cotton, the polyester filaments act like a knife and will cut cotton fibers...not something I want after everything that's gone into making a quilt to be loved/used. 3) I've found that poly batting beards more quickly than cotton. Plus, I like the "drapiness" of quilts made with cotton batting. Okay...I'll get down off my soapbox now (LOL) and look forward to hearing all your feedback. Have a great day! :-D