I was intrigued by the concept of this item a few years ago and tried it out and now want to get something I can take down to 20 degrees.

Used for this 15 nights in PNW and two trips in Grand Canyon, paired with Nano Puff in midsummer conditions (mid 40’s) it worked good to keep me warm, used it with a Patagonia Down sweater for spring Grand Canyon trips and it also kept me warm although it maybe got a little below 40, could have pushed it lower and been comfortable still. I tend to be a warm sleeper and a side sleeper. I’m also 6’4 and it was more than comfortable for my size. No holes, no tears, stored in cotton sack when not in use in a smoke free house. I’m asking $270.00 including shipping, CONUS only.