MEDIUM-FIRM COMFORT: A balanced feel that supports proper alignment—ideal for combination sleepers and those who prefer not-too-soft, not-too-firm. ZONED LUMBAR SUPPORT FOAM: 3-Zone Support Foam targets the lower back and hips for pressure relief and alignment. CUSHIONED PRESSURE RELIEF: Serta PillowSoft Aire and PillowSoft Foams provide contouring comfort around shoulders, hips, and knees. BREATHABLE COOLING DESIGN: Airflow-enhancing cover fabric and breathable foams promote a cooler sleep environment. DURABLE SUPPORT FOR UNDISTURBED SLEEP: Durable coils reduce partner disturbance-provide lasting support across the mattress. BUILT TO LAST – CERTIPUR-US CERTIFIED: Sleep soundly - CertiPur-US certified and backed by a 10-year limited warranty. EASY SETUP – MATTRESS-IN-A-BOX – MADE IN USA: Delivered in a box and made in the USA with global components. Setup takes minutes—just Unbox, Unroll, Unwind.