This 8 Inch Contouring Plush Hybrid Mattress in Twin XL size is perfect for kids, teens, and college dorms! The 8-inch hybrid profile offers the best of both worlds with soft memory foam on top and a supportive innerspring on the bottom, helping you awaken feeling relaxed and refreshed. Plush is best for side sleepers or those that prefer a softer support for their back. This mattress has 2 inches memory foam and 6 inches bonnell springs to conforms to the curves of your body without leaving lasting indentations. 13.5 gauge of bonnell innerspring help support your back and joints. 100% polyester cover provides a warm welcoming feel for optimal comfort. All our memory foam is CertiPUR- US certified, 100% free from harmful chemicals. Mattress arrives via FedEx Ground compressed and shipped in a box that takes 24-48 hours to fully expand. Twin XL Size Reversible - No Comfort Level - Plush - best for side sleepers Composition - 2 inches memory foam, 6 inches bonnell springs Dimensions - 39