My first thermarest is still going strong. I bought it on a Florida to Denver CO road trip in college to attend GSA. ‘98 or ‘99. It was a great step up from the super crappy thin closed cell foam pad. I’ve since added a second thermarest. When camping with my wife and 4 kids, the wife and I get a queen sized air mattress and the kids have stacking cot bunks. But this level of camping is reserved for the vehicle based, drive up to the campsite, pitch the tent.
The Exped has an internal easily used pump that you push on. It has down in the baffles that keeps you warm in cold weather, I used it on work trips lying on the aluminum floor of C5 and C17 aircraft as well as camping on the ground. It’s been bomb proof and comfy.