A synthetic Climashield UQ with a bottom sleeve to insert a layer(s) of insultex into (making it adaptable to expected temp. range). Worth a try, anyway.
By bottom do you mean against hammock or below the climashield? I have some insultex laid out and was on the same track with the climashield. I was planning on the Insultex to the outer cover and the climashield to the inner cover. I was going to make a trapezoid shape to keep it shaped more to hammock.
BTW: Thanks for the quick shipping Mac