Thanks for the advice.
I am toying with the idea of draft stoppers. I figure they will add an oz to the weight of the quilt. With the edge seam that I am using on the down quilts, adding them later will not be hard. Would a rolled hem on the edge make it easier to tuck?
I want them to be able to lay flat so that I can use them as bottom quilts as well.
I am thinking now about how to close the footbox. Headchange suggested using snaps to close it. Any thoughts of using them or something similar instead of depending on the drawstring and onmi tape, or a short zipper?
My thinking is that weight wise they might add a little, but they would keep the bottom of the quilt from compressing and from taking away some of the length.