Serta Perfect Sleeper Best Day 13.5" Medium King Mattress

Featuring an 825-coil density system, this supportive mattress offers zoned comfort and pressure relief where you need it—with upgrades available with more cooling layers and support. * PillowSoft® Aire Soft foam provides enhanced cushioning for exceptional comfort and promotes airflow through its unique, gently rippling design * Gel Band Support Gel memory foam lumbar support band provides support for the lower back and hips * Custom Support Coil System This 825-coil density system provides contouring, cradling support and minimizes motion transfer * Anti-Microbial Technology - Our anti-microbial mattress technology will keep your mattress fresh and clean from odor causing bacteria * Proudly 100% USA assembled * Compatible with most frames, platforms and adjustable bases * We only use foam that is Certi-PUR certified * 10-year limited warranty, so you can stay worry free