I would do some research to see how people have adapted their hammocks to use as a bivy shelter. I have a warbonnet blackbird, and I bet I could rig something with a few poles on either end to allow the tarp to be stretched over the hammock, allowing me to bivy on the ground and stay reasonably dry. This could work for me as I have my hammock set up so that the ends clip with carabiners to be suspended from loops from the tarp ridgeline, so the bug net would be up out of my face and the "wings" on the sides could be guyed out some. You'd have to carry some kind of ground pad, of course, but that's a minimal weight and space penalty.

I understand completely not wanting to go back to the ground. I've never slept as well as when I sleep in my hammock.