This 4-inch mattress topper features a dual-layer design with cooling gel-infused memory foam and bamboo charcoal-infused memory foam to prevent overheating and absorb moisture. High-density memory foam conforms to your body for superior support, even weight distribution, spinal alignment, and pressure point relief. It also enhances air circulation and reduces motion transfer for uninterrupted sleep. The topper includes a skin-friendly, breathable knitted cover that is removable and machine washable for easy cleaning and longevity. Four corner elastic straps ensure the topper stays securely in place. A mattress topper is an affordable way to refresh an old mattress, adding optimal support. It is suitable for various uses including sofa beds, guest beds, caravans, college dorms, Tatami, and camping. The topper is vacuum-sealed and rolled in a box for easy transport; it inflates within 10 seconds and may take 24-48 hours to fully expand. Vesgantti offers a 100-night trial and dedicated customer service.