Therm-A-Rest's ProLite™ mattresses are tailor-made for anyone seeking three-season comfort with a priority on minimal weight, maximum compactness and, of course, quality. Now lighter and more compact than the previous ProLite 3 mattresses, weight is the only thing you’ll find missing. You still get the reliable performance and comfort you need, after the kind of high-mileage, high-speed journeys where the ProLite mattress shines brightest.