I finally did it! It was a kinda cool night, so I put another sleeping bag and thermarest down under me, then was in a sleeping bag, and I can't believe how well I slept! Most comfortable nights sleep I've ever had!
I did discover a pretty big problem though.... When I went to go to bed today, my bed feels so flat and just... unhammocklike! It makes me wonder how I ever slept in it and why humans don't just sleep in hammocks, not beds!