I'm trying to picture in my mind an under quilt attached to the hammock in multiple points without shock-cords. But, quilts are not generally as wide as a hammock. I'm thinking that I would be loading the quilt with my weight, at least until something gave way. This is starting to sound a bit like a built in underquilt - which someday, given the research here, may end up being the standard.
"Life is a Project!"