For the test I had no insulation under me, I slept on grass in my back yard. It was probably softer conditions then I would find around here, but not as soft or inuslated as I would normally try to make.

As far as I know, the Heatsheet Bivvies all come with a stuff sack but the Heatsheets themself do not. I will have to look at the instructions closer, I glossed over them. The ones included on the Heatsheet we pretty basic and not a replacement for good survival practice or instructions.

I will see if I can get some more decent pics of it in use up. There is no reason this piece of gear shouldn't be in everyones larger survival kits.