I've heard of using patterned sheets as whole-cloth quilt tops, too. Use a plain one for the backing and the main thing you're left with is the binding and batting.

Thank you to all who responded. I'll start looking for sheet sales soon. I imagine the sheet should be washed a few times before using.

I have always used sheets cotton are flannel never a problem
with using them , I'd say go for it :D

I never thought of flannel. Could a flannel sheet be used as batting or just backing? Can flannel ever be used as batting?

I say if the brand of sheet you use gets little balls on it don't use it. I use main stay from Walmart and have used them for years and never had balling up so use the same ones for quilt backs.

The sheets I use right now don't get balls, but they wrinkle!

I have been saving my old flannel sheets and plan to use them as my 'middle' layer in the sandwich. I think it will work just fine and I don't have the heart to throw a flannel sheet away just because it is old. I am going to be old someday too and I don't want to be thrown away. :-) Seems the quilt will have good weight to it. I am anxious for answers from others who may have used them for batting already.

Yes flannel makes a good batting f you want a thinner quilt. Just prewash flannel really shrinks.
I have also used pre washed flannel as a thin batting in a quilted jacket.

I use flannel on the back of baby quilts but had not thought of using on a regular quilt. Makes sense though. I would especially want to use flannel for kids; they love the soft feel of the flannel. Thanks for sharing.

I have never used one but it sounds like a good idea to me. I say go for it.