There are more color options with Dream Hammock. The SB has a double pull zipper, which is on both sides. The DB has an overcover, which is not available on the SB. The SB has a couple of sewn in loops over each end, to which you can add a spreader bar or the like (similar to the photos that I've seen of the DD Hammocks).
When I did have my TTTG hammock up, I recall fussing with the hanging angle over & over, with it still not quite being right. Finally, when I put it up really tight - not even close to a 30* angle - it started to feel better. There's a photo of my blue SB in my gallery.