As fans of Keetsa mattresses, we cannot help but get excited about the uber-cool Denim mattress, which is now selling at a discounted price. However, the discount is only applicable on the Twin XL mattress size, but the offer will extend till September. Made of recyclable materials, the mattress is the ideal blend of high quality memory foam and other supportive foams. The cover is 100% cotton denim and the memory foam is made with a blend of natural and synthetic materials. It also features EverGreen technology, which is made from all-natural green tea, is embedded into the memory foam for long-lasting natural odor control. Check out the back to school promotion here.