Roam Adventure Co. - Memory Foam MattressThe 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