Cool Twist Gel Memory Foam - This unique design features cooling gel swirled into premium memory foam. This breathable memory foam helps enhance airflow and heat dissipation for a feeling that can only be described as a cool, contouring type of comfort Utilizes a 1 inch layer of Serta's PillowSoft Aire Soft Foam - This foam provides enhanced cushioning for exceptional comfort and promotes airflow through its unique, gently rippling design Gel Band Support - A band of gel memory foam provides lumbar support for the lower back and hips Custom Support Coil System - The includes an 825-coil system that provides contouring, cradling support and minimized motion transfer Questions - We pride ourselves on customer service and urge you to reach out to us directly if you have any questions at any point, our expert customer service team will be available to help you through any of your hesitations, problems or questions