really a very nice camping mat, super small and light and also well rolled up (no power consuming high compression needed) and nevertheless very comfortable. a marvel, and or pay as twice as much! However, you have to their small mass note 51 cm wide is not much, with bent legs is something in addition to the mat and for my height of 1.70 is good it just so adequately. you have to know just what you want I have until now only once rolled out, and as it has not really been blowing yourself, maybe it's always like the first time? but went in a few seconds "by hand".