Have you looked at the Kammocks?

They only have one size but i believe it is just a shy smaller than the ENO double. I had been looking at the ENO's for a long time but decided to give the Kammock a shout.

Absolutely love it so far. I was down at the beach this past weekend and set mine up next to two friends with ENO's. Jealous of my Kammock fabricate/design/quality is an understatement.