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 3 Zoned Coil Design - This 850-coil density system offers three support zones with targeted support for your lower back and hips and cradled comfort everywhere else BestEdge Foam Encasement technology - This provides an extra-deep foam rail to help reduce edge roll-off and extend the sleep surface Compatible with most frames - Including: traditional frames, box springs, platform frames, slatted frames, bunky boards, and adjustable frames Shipping/Manufacturing Note due to the high-quality manufacturing and substantial components contained within this mattress it cannot be compressed and is shipped ‘full-size’. Delivery Services availability and add-on costs determined by region. If Delivery services are available in your area you will be prompted to add them to your cart at checkout. Otherwise, Mattress will come standard with ‘door-drop-off’. If Delivery Services are not available in your region it is recommended you seek assistance/multiple persons to move due to the products heavy-bulky nature.