Introducing the Terracotta Memory Foam Hybrid mattresses by Therapedic. The Therapedic Immunity collection features advanced cooling technology through high-end covers using phase change materials and multiple layers of copper-Infused memory foam. Copper provides antibacterial properties, heat dissipation, extreme comfort and pressure relief. Support and motion separation in the Terracotta is achieved through the ultra-premium Quantum Edge pocketed innerspring. All Therapedic Immunity mattresses are hand crafted and use only ultra-premium materials.