I have made one - and the original request was for a duvet cover. It was machine quilted onto a muslin base. The block size determined the lines of stitching - about 3" apart - but it didn't really need that much. I didn't need to bind it. Used the envelope method with extra fabric in the bottom seam to incorporate a Velcro strip for closing after the duvet was inserted. No complaints yet - and that was a couple years ago.