I usually use 80/20 or on a couple I have used 50/50, most recently I quilted a couple of quilts with the "Dream Batting" and am impressed they had wonderful drape and excuse the pun but quilted up like a dream... I usually make my quilts "oversized" usually to the floor or just shy of it. You can get these batting by the roll which I use. I also used wool on one actually just to see how it quilted and liked it too.