Memory foam mattresses are a hot trend for good reason. But for some, they simply get a bit too toasty for comfort. Rest easy. This 12-inch twin memory foam mattress has you covered with the cradling feel you love and temperature regulation you crave. Its soothing memory foam contours to your body, while a thick layer of firm support foam provides wonderful pressure point relief. And how's this for cool: Thanks to dual ventilation technology, you get a more breathable memory foam mattress. It's topped with a micro cool technology cover to keep you that much more comfortable. Foundation/box spring available, sold separately. Sierra Sleep® by Ashley is a Registered Trademark of Ashley Furniture Industries, LLC.