We do own older self inflating thermarest and an REI branded model. Before we tried the trekker I weighed them. 6lbs! And huge. there's no way I can carry one in or under my pack. They were bought for car camping only. Theye just aren't an option for us. We are both middle aged women. I used to be stronger but at this point in life ultra lite is the only option. Now, I could go to REI and see if there's a newer version of the heavier pad that comes in a short or torso size. I am still surprised that the neoair wasn't comfortable for her. I love my xtherm. Thanks for the suggestions.