I just make a top pocket and leave a "window" in the center. Then insert a small dowel (avail at any home improvement store like Home Depot - cheap!)
It's easy to saw/cut the dowel to the right length, I've even used kitchen scissors to score it all around, then snapped it off!
Hammer in a nail or screw in a screw in the middle of the place where you want to hang it. When you hang the quilt, place it so the nail holds up the dowel, through the little "window". Just adjust it side to side to get it level.
Nothing fancy, and it's cheap.