Rivian R1S Compatible | Our Most Comfortable Sleep System — Experience the comfort of a real mattress wherever your vehicle takes you. The Rivian R1S Compatible AIR+FOAM PRO Vehicle Mattress, combines supportive foam with air-cushioned comfort to create Luno’s warmest, most luxurious sleep experience. Designed for campers who refuse to compromise on sleep, it self-inflates, packs down easily, and delivers exceptional insulation for four-season adventures—precisely tuned for the spacious interior of the Rivian R1S.