This versatile mattress topper offers two sleep options in one: the Gel Memory Foam side draws heat away for plush comfort, while the Copper Foam side provides firmer support along with natural antimicrobial and odor-resistant properties. It adapts to your body shape to relieve pressure, reducing aches and tension, and is made with CertiPUR-US certified high-quality foam-ensuring reliable durability and performance. Suitable for all ages, from children to seniors, it has clear weight limits: up to 250 lbs. for Twin size and 500 lbs. for other sizes. Plus, it comes compressed, vacuum-sealed, and rolled in a box, making shipping, carrying, and setup easy, and it uncompresses in seconds right after unpacking. Material: Polyurethane.