Featuring Triple-Stranded Pocketed Coil Technology for most advanced, individualized support + motion separation. Features: •For the person who wants an ultra-supportive, firm feel with no sinking feeling •Triple-Stranded Pocketed Coil Technology offers most advanced level of individualized support and motion separation, so you can rest undisturbed •Specialized vertical fibers combine with an applied surface-cooling technology in an advanced feature designed to help transfer heat away from the body all night •Contouring foam adheres to the shape of your body for night after night of exceptional pressure relief •High-density, firm-feel comfort foam contours and conforms to your body, so you can experience a unique combination of comfort and support night after night •CertiPUR-US certified foams •Packaging: Shrink Wrap •Unit Of Measure Id: 1 Width: 38 (inches) Height: 13.5 (inches) Length: 79.5 (inches) Weight: 63.89 (pounds) •Size: Twin XL •Warranty: 10-Year Limited •Mattresstype: Innerspring •Mattress Top: Extra Tight Top