The Roam Memory Foam Mattress is a 4" dual-layer foam mattress that turns camping sleep into a dream. The top layer of the mattress is an ultra-plush foam designed for comfort while the base layer is a dense foam designed for structure and support. The dual-layer foam creates the ultimate sleeping experience and transforms your camp bed system. One of the innovative features of the mattress is its ability to daisy chain together with other mattresses giving it the ability to be a single, double, triple, or even a quad-width mattress. The base fabric is weather-resistant melange and designed to be able to be laid on just about any surface. The top is a plush stretch nylon fabric that is comfortable, tough, and cool to the touch. When you are ready to stow your mattress there are integrated compression straps to minimize the stowed size of the mattress with a carrying handle built in.