Wow. I'm amazed that some of you can share hammocks. With all the tossing and turning I do I'd get charged for wife beating.
More power to those of you who can do it.
generaly most people say they move less in a hammock? The seperate hammocks using a strut or three point hang is great but you might as well just have two hammocks anywhere then cause you are saving no weight or bulk that way.
Any manipulation you do to the single hammock body will still result in both people at the common center of gravity unless you have side tie outs as well but they would have to be strong and you would need 4 trees then.
We did share the hammock two weekends ago and it wasn't nearly as bad as I guessed it would be.
It was very warm and only slightly uncomfortable. Doing it again this weekend for two nights so I will try to expound on our experience more after that.
My wife and I often sit or nap together in one hammock, but for sleeping, two hammocks side-by-side is preferred. We usually use 3 trees, one large diameter head end tree works too. It's easy enough to tie the head end suspensions closer together or add a stick found in camp with clove hitches. I've really only needed to tie them together. The stick spreader is something I've only used in backyard experimenting, but it works.
I do often prefer to carry a walking staff over trekking poles, because I can suspend one hammock end with it. Again, I haven't needed to yet, but I like to have a "full toolbox".
The only thing I would really like to improve on is a way to attach to separate hammock together so the netting can be shared. This would allow you to easily pass things back and forth, or put your arm around your partner.
So after this past weekend trying the two in one setup again on the Arizona group hang, we have decided to add a second hanging setup (hammock, uq, tq) to our gear list for the AZ trail this March. Our comfort at night will have a huge impact on how many miles we can get through as the days progress and I know with the proper insulation the weight penalty will be worth it.
I think no matter how you set it up to truly share warmth you would have to have a common under quilt unless you are sharing one hammock. I like the idea of duel bridge hammocks with a single spreader bar/walking stick at each end. Biggest problem with that I can think of is how you overcome one person getting out of the hammock. Lots of ropes I guess.