Portable Tri-Fold Mattress for Home, RV & Camping – Comfort Anywhere The Airdown 4" memory foam mattress folds easily in seconds, offering a comfortable sleep surface wherever you go. Its compact design stores neatly in car trunks, RV closets, or under beds—perfect for saving space at home, on road trips, or at the campground. Enjoy soft yet supportive memory foam that’s CertiPUR-US certified for safety and durability. The removable, machine-washable cover keeps your mattress fresh trip after trip, while the tri-fold design makes setup and storage simple. Whether you need an extra bed for guests, a comfortable mat for camping, or flexible sleeping space in your RV, this foldable mattress delivers comfort and convenience all in one.