Sea to Summit set out to design a mat that was better than what was already available. ?Better? is of course a very subjective ambition: while they could have made the lightest, or the most compact mat ever designed, they ultimately went back to why campers carry a sleeping mattress into the wild in the first place ? to give us a better night?s sleep. Sea to Summit has created what they consider to be the most comfortable sleeping mattresses available. Happy sleeping!