Made in the USA, handcrafted in Wisconsin, the Elio firm has a traditional innerspring system featuring firm wire-tied construction to provide a stable and durable support system. The Foam edge provides quiet perimeter support, increased sleep surface, and a firm seating edge. This mattress has a three-way secured stack of conformance upholstery layers. The Elio firm also has a sewn and flanged system for air flow and pressure relief. It has a back support element for spinal alignment and deep down durability.