When I had a down comforter on the bed, I made a duvet cover for it The top of the cover was pieced and quilting to flannel. It worked very well and you get the look of a quilt with the warmth of a comforter. If you use flannel it won't make it heavy enough to mash down the comforter. Win-win!
Edit: I didn't put a back on the top. I just quilted it to a piece of cheap Joann's flannel that I had washed and dried. It worked great and wasn't heavy.
Last edited by cashs_mom; 12-23-2021 at 11:20 AM.