Self inflating mats are a layer of foam sandwiched inside an air tight shell with a valve. The valve is closed when its rolled up. When you need to use the mattress, the valve is opened and the foam expands and sucks air into the mat. Make sure this fits by entering your model number.; 74 x 25 x 1-1/2 Self-Inflating Camping Mattresses Lightweight and compact Rugged tufted nylon outer with foam core provides insulation and cushioning Torrent Pump Designed for use with Therm-a-Rest air mattresses, the Torrent Pump inflates a large NeoAir mattress in just 1.5 minutes. Its strength lets you make your mattress as firm as you like, without worrying about over-inflating. The REI AirRail 1.5 Self-Inflating Sleeping Pad features a hybrid design that offers low weight, compressibility and ample sleeping comfort. Available at REI, 100% Satisfaction Guaranteed. There is also the option of a Memory Foam Air Mattress, which is an alternative to the standard latex.The feel of an air mattress made of memory foam is similar to a traditional bed with memory foam.It is ideally designed to contour to your body’s natural curves and ensure the best and most comfortable sleep. The 10 Best Air Mattress Reviews – Complete Buyer’s Guide for 2018 .