Crafted from gel memory foam, this 8 in. foam mattress is covered with a breathable removable cover. This not only keeps air circulation that cools your body, but it would avoid becoming mouldy and collecting odor. Medium firm ensures that your waist and spine will get less pressure to keep your healthy body. Multiple models provide more choice for you who have different rooms, beds in diverse conditions. The cover is made of heavy-duty fabric which is friendly with your skin, and it comes with a 1-year warranty. Actually, it has a long lifespan which can last more than 5-years. So do not doubt this. Color: White.