I have used a mountaineering wall hammock for camping.
They are designed to hang from a single point and have a roll up rain canopy, and are used to spend the night when rock climbing vertical walls that take more than a day. They have a pvc frame that goes together to make the floor into a rectangle, which helps some on getting a sleeping pad underneath you. Still takes some fiddling with however.
For camping, I have just hung it from a tree limb.
I once hung mine high up in a big tree (and wore a harness) when moose hunting in grizzly country. It was a gun hunt so I could wake up and start hunting right away, but for bowhunting you would have to get out of it and into a stand...
Look at mountaineering supply websites and you can see what they are like if you are interested.