I'm about 165 lbs, 5'10".
I picked up an XTherm at the REI Garage sale after I returned from a backpack deer/elk hunt last month. I've been using an uninsulated Klymit that I've found to be comfortable side sleeping (usually how I sleep), but my back was getting cold at 20-30 degrees until I added a RidgeRest under it after packing out one of our animals. I kind of prefer the baffled shape of the Klymit to the flat XTherm, but I didn't notice a huge difference in comfort. I don't usually have issues being comfortable on inflatable pads though as long as I let some air out of them.
I've only slept on it once so far. It was an overnight low of around 27F. It's every bit as warm as my lighter self-inflating pads that I typically use during the winter. I'm pretty comfortable trusting TAR's R-value ratings.
It feels about the same to me padding-wise as an XLite if you happen to know anyone with one of those. I think they both quiet down some after they've been used BTW. Kind of like Tyvek.
Last edited by owenst7; 11/09/17.
