Found out my cheap sleeping pad has an R-value of 1.3, and I camped at 9,000 feet in Utah
I always figured a pad was a pad, so long as it was not a rock, and my $30 blue foam one from a gas station in Moab did fine in July. Then I read the spec sheet after a cold night near Bryce and it says R-value 1.3, which apparently is close to sleeping on nothing. My buddy had a pad rated 4.5 and slept like a baby while I shivered with two jackets on at 31 degrees. Guess I owe him an apology for all the heat I caught backpacking in April. How do you all check R-values before buying, do you just trust the box or dig for the actual number?