I found it to be a highly efficient and slick addition to the car mattress system circuit. All told, it’s about the size of a large sleeping bag (29” x 11” x 18”), making it ultra-portable. PerformanceWhat’s it like to sleep on the AIR+FOAM Pro Vehicle Mattress System? It doesn’t hurt that the mattress system comes with a three-year warranty. If you want a great car camping mattress that touts efficiency, versatility in going from solo to couple size, and next-level comfort, this is your portable bed for your future car camping adventures.