Resilient support meets adaptive comfort in the ComfortGrande® Hybrid Mattress. A robust innerspring system uplifts and aligns your body, while a firm foam border protects edge support. Cooling and contouring EVENcor GelMAX™ memory foam is infused with Phase Change Gel that responds to your body heat – cooling when you’re hot and warming when you’re cold. With superior support, classic pressure relief, as well as cooling temperature regulation, you’ve got the perfect combination for reliably restful sleep.