Originally Posted by
warbonnetguy
i consider myself a cols sleeper as well. it was below 20* all night long, i woke up a few times an was warm, when i woke up at 7:00, by back was barely cool, and i could have gone right back to sleep. i plan on doing some more testing, so i'll let you know about lower temps, i do feel like i could possibly go a few more degrees before i was uncomfortably cold though.
i also have just made a sil shell for it, i would like to see how much warmth this adds, i also came across some material called a heat sheet, it is reflective like a space blanket, but soft and quiet, it is thin, and it is laminated to about a 1/32" of ocf. since i can access the inside to add/remove layers, i could also add this or other reflective material. it is a vapor barrier so i might only be able to use it in conjunction with the sil shell, otherwise the insul might get wet.