The Piersville Euro Top Mattress is unique in it's supportive construction. Individually Wrapped Coils, zoned with three different gauge wire, providing more support as you move to the center of the mattress, helping to keep your back aligned. Layers of comfort foam including Gel Infused Memory Foam and Firm Fitness Foam, provide a soft supportive, comfortable feel. An additional layer of Micro-Coils enhances the support. A good mattress for a back or side sleeper.