Rally by Diamond offers advanced technology for a high-performance sleep. Starting with transitional layers that create a weightless feel and provide orthopedic support, Rally’s core features Hyperconductive Copper Bounce Foam & Responsive Gel Memory Foam that provides precise body contouring. Our Copper Bounce Foam actively moves heat away from the body and brings airflow in. Each mattress is finished with our High-Performance Fabric, a textile woven with CoolRelease technology, conducting away just the right amount of heat to create the most comfortable setting to snooze in. Fall asleep, stay asleep and wake up as your best self with Rally, a mattress designed intuitively for you.