12 Inch King Gel Memory Foam Mattress CertipurUS CertifiedSleep cooler, wake rejuvenated. The 12 inch king gel memory foam mattress blends cooling comfort with precise pressure relief for a more restorative nights rest. Engineered to support proper spinal alignment and evenly distribute body weight, this king memory foam mattress minimizes sinkage at the hips, shoulders, and lower back so you wake up refreshed. Gel infused memory foam for pressure relief: contouring comfort that eases pressure points while