Our 5 ZoneResponse™ Design provides full-body spinal alignment | True Response™ Latex Foam provides responsive, long-lasting comfort | Graphite-Infused True Response™ Latex Foam moves heat away for cooler sleep | CoolFeel Pro™ System uses cool-to-the-touch fabric and breathable latex | PillowSoft® Foam provides enhanced cushioning for exceptional comfort | CertiPur-US Certified Foams, Womens Choice Award | Firm - Ideal for stomach and back sleepers or for those who prefer a firmer feel | Designed and Assembled in the USA | Motion Base Compatible | 10 Year Limited Warranty | Your new mattress may initially feel firmer than expected. Please allow up to 60 days to acclimate to your new mattress as it naturally adjusts to contour, comfort, and support you best | Premium memory foam is temperature-sensitive; it may feel firmer in cooler temperatures and softer in warmer ones. For your preferred comfort, please allow several hours for your memory foam mattress to adjust to the room’s temperature