PLUSH FEEL - Great for side sleepers for extra comfort at the shoulders, hips and lower back. ZONED LOWER BACK SUPPORT: 3-Zone Support Foam targets the lumbar and hip areas for improved alignment and full-body comfort throughout the night. PLUS GEL BAND SUPPORT: Gel foam lumbar support band provides support for the lower back and hips. PRESSURE RELIEF: PillowSoft Aire Foam and Serta PillowSoft Foam provide enhanced cushioning, and ActivBalance Support Foam. COOLING GEL FOAM TECHNOLOGY: Cool Twist Gel Foam enhances airflow and heat dissipation for a refreshing sleep. 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.