So I admit I like to keep my gear very light, but I sacrifice some weight for a good nights sleep. I have tried numerous pads from Big Agnes, Thermarest, and REI. This pad has given me my best night of sleep on the trail so far. I do have the long/wide pad but I am 5’8” 165lbs. I never wake up and find myself off of the pad. The larger outer chambers keep me in the middle. The surface of the pad is not excessively slippery. I have never experienced any air loss. This is an excellent sleeping pad.
I just returned from a five day backpack in the Sierra Nevada. This pad kept me comfortable on many rocky surfaces while everyone else in my group were complaining. It’s so awesome that I’m going to buy a second one!
In spite four night-long attempts, at varying pressures inside the mat, I could not get comfortable on this pad. While the dimensions match, it only barely fit my Big Agnes Deer Park bag. Inside a small tent, this made adjusting the pressure impossible without flipping the entire assembly over. The pump bag works fine in my living room, but not in a small tent during a rainstorm. The pad appears to be well made and may be durable, but not for me. Returning.
I purchased my Exped initially for winter camping. It worked so incredibly well in insulating me from the snow as well as giving me a mattress feel for sleeping that it's now my go-to sleeping pad year-around! A sleep-at-home night's rest in the backcountry can't be beat. :-)