This top-of-the-line mattress features a hybrid blend of comfort foam and springs, providing you with a sleeping surface that is both comfortable and supportive. The 7.5-inch triple-layer thick design is standard twin-size, and features a quick set-up design, making it easy to get your new mattress set up and ready to use in no time. The top layer of the mattress is made from 1.5-inches of comfort foam, providing a plush, pillowy surface that is perfect for relaxing after a long day. The transition foam layer reduces motion-transferrence, so you can rest assured knowing that you won't be jostled awake throughout the night.