We start with our ComfortFlex continuous coil system that ensures each sleeper is supported by as many coils as needed to keep them in their most comfortable correct posture for a supportive night’s sleep. We use our superior insulation system to ensure that the soft cushioning materials don’t sink into the innerspring, providing a longer usable life of the mattress. Then we put on a firm layer of supportive polyurethane foam topped with two layers of cushioning material quilted into a tough yet beautiful cover. This combination of cushioning gives the sleeper a firm sleeping surface with a softer initial feel. Remember, this is a two-sided mattress for additional comfort and usable life.