Setup my Eno hammock today and relaxed in a park near the house for about an hour. Was pretty comfy with a nice breeze, still need to try sleeping in it. I have the single size and it's a bit claustrophobic for relaxing in, but probably better for sleeping. Pulls tight across the shoulders etc.
Hammock
http://www.rei.com/product/754769/eno-singlenest-hammock
Straps to hang it from trees.
http://www.rei.com/product/840700/eno-atlas-hammock-suspension-system
They offer many accessories you add as needed, such as rainfly's and bug tarps, so only buy what you want/need.