Southern Enterprises 14" myCloud Nimbus Gel Memory Foam Mattress, Twin X-Large, White with Navy and Sky Blue Cloud-puff stretch knit cover with cloud corner accents and sateen trim, Non-skid bottom Ventilation-pierced for a cooler night's sleep: 2 Cool Cloud gel pillow top memory foam w/ 1 quilted memory foam 9 Base foam: 1.87 Pound Density, 1 Memory foam: 3.4 Pound Density, 2 Gel memory foam: 3 Pound density; Dimensions: 38" W x 80" D x 14" H (Twin XL) Cover is not removable. Spot treat cover with mild detergent; do not machine wash or dry. Use a mattress protector to avoid stains. Rotate your mattress every 2-3 months Constructed of Poly-base foam, medium density select memory foam, Cool Cloud gel-infused memory foam, polyester, cotton. White w/ navy and sky blue