Well, thanks to the generosity of Glenn, I can let you know what I think pretty soon smile

I did give it a test on the floor last night for a bit. I found it pretty comfy. I'll know better in a night or two when I get a chance to use it outside.

I'll also be testing a piece of single layer bubble foil on top of it to see if it adds any extra warmth. The bubble foil is 22.5" x 65" and weighs about 5oz.
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"You want to go where?"