Serta's new Sleeptrue Collection of beds gives you a value priced mattress using Serta technology to bring you an affordable, Quality Mattress. The Malloy Firm Mattress is a Pocketed Coil mattress built for lasting comfort. With a supportive, contouring Wrapped Coil unit and Cool Twist® Gel Foam to help dissipate heat, you'll sleep comfortably. A good mattress for a stomach sleeper or a back sleeper.