You can get the support you like in either a single or double layer. Just get thicker, heavier fabric for the single layer. I have double 1.0 oz. hammocks that feel about the same as my single 1.9 oz. hammock. I have a single 2.6 oz. hammock that feels too hard for my taste. Others are loving their single layer M50 hammock with 0.7 oz. fabric. It's sort of like a "Sleep Number" bed commercial.