Has anyone used this pad from Gear Doctors? Supposedly it has a mylar layer like those yellow thermarests but they claim it has a higher R-value (5.2), doesn't crinkle, and is half the price. I found this review https://www.youtube.com/watch?v=nfEXfrWaLAw
and they guy seems credible for calling out inaccurate R-values like Klymit pads, but I'm not completely sold from one review. If this turns out to be a good winter pad I'd be more than content. Also general sleeping pad thread.