DynastyMattress Luxury 12-Inch Memory Foam Mattress- QUEEN Queen 12-inch therapeutic memory foam mattress with 5-inch viscoelastic memory foam and dual airflow system Responds to your body's temperature and contours to your body's shape Extra comfort and responsiveness; four-way zipper cover Queen size: 80-inch length by 60-inch width 20 year warranty and 90 day in-home guarantee.