28" wide 1/2" CCF pad at Walmart for $12
I was in the evil giant today and saw a new CCF pad that's 28" wide...probably wide enough for many folks to use as a stand-alone bottom insulation in the hammock. The contour pattern might actually reduce a lot of the condensation problems, too. It weighs 15 oz.
One problem is that it says .5" thick, but that's the contoured section. The CCF between the contour bulges is only about 1/8" thick...which will be the effective insulation between the hammocker and the environment.
Still...I think this might be a $12 solution down to around freezing for folks who are pretty comfortable using pads.