The exped synmat hl mat the worldrsquos lightest warmest and most comfortable mat in its category is also super compact when stowed designed as a mat for two but luxurious as a mat for one two separate halves with separate combination valves individual firmness for each sleeper this is also an added safety measure in case a leak happens exped synmat hl mat features 2 separate half39s with separate combination valves so there is no wobbling interfer