OK, I am not the hard guy I once was. Back in the day I used the typical 3/8" ensolite pad on hard ground. But now I seek cush - hence my love of hammocks.
I abhor the idea of going to ground, but until now I couldn't think of a good way to provide insulation in my WBBB 1.7 double and also have reasonable comfort if I needed to hit the ground. Then I saw this:
and thought "Ah Hah!". A true epif....epuf....epiph.....a great idea. This pad is 25" wide x 47" long. Enough for coverage shoulder to knee, and wide enough for side sleeping. Heck, my JRB Torso pad is only an inch longer and an inch wider and it works well (but not so comfy for my aging bones when used on the ground).
The NeoAir can be inflated rigidly or softened to suit your preference. It packs up into the size of a Nalgene pint bottle and weighs 16 oz.