Having not seen these quilts in action, Im a little befuddled. I have a 70X50 down quilt I have tried to fasten to the bottom of my hammock. It fits snug on the bottom, but the farther up from the middle the quilt goes, the farther away from the hammock it hangs. Ive tried a thru lacing elastic cord system on the ends to draw it together but it still leaves a big gap on the ends of the hammock. How can I pull the whole quilt up against the hammock so there are no air gaps? Couldnt find any pics for examples. Thanx ahead.