I have use the klymit insulated and non insulated and an older model thermarest that was “self” inflating. I like how wide the exped is so I am not hanging my arms on the ground. I also seem to always sleep on my side or stomach so the 3.5” pad is great since my hip and shoulder isn’t touching the ground like on the klymit. I looked at the xtherm that others have mentioned but even the wide felt narrow for me. To me the exped is worth the weight penalty to have a great nights sleep in the woods.