For better more restful, healthful sleep, the InnerSpace Sleep Luxury Mattress is the answer. This revolutionary, space-age product does not use springs, but a patented system that firmly supports your body to ensure the best sleep possible. What sets the InnerSpace Sleep Luxury Mattress apart from metal spring mattresses is the Verflex core. This unique open cell material conforms to the contours of your body in a way no metal spring system can. When you lie down, the Verflex core distributes your weight over the surface and eliminates the pressure points that can prevent comfortable rest. The result - you can sleep soundly all night long. Available in twin (38" x 75"), XL twin (38" x 80"), full (53" x 75"), queen (60" x 80"), king (76" x 80"), and California king (72" x 84")."