Featuring an 825-coil density system, this supportive mattress offers zoned comfort and pressure relief with a lumbar gel support band and Cool Twist® Gel Memory Foam that contours to your body—with upgrades available with more cooling layers and support.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 comfortPillowSoft® Aire Soft foam provides enhanced cushioning for exceptional comfort and promotes airflow through its unique, gently rippling designGel Band Support Gel memory foam lumbar support band provides support for the lower back and hips.Anti-Microbial Technology - Our anti-microbial mattress technology will keep your mattress fresh and clean from odor-causing bacteriaCustom Support Coil System - This 825-coil density system provides contouring, cradling support and minimizes motion transfer.Threshold delivery: the mattress is delivered into the first door of the address or lobby of an apartment or condo. It does not include haul away or set up.Includes FoundationCertiPUR-US® Certified means our foam was tested for and is free from harmful chemicals and gasses