4 Layers of Comfort - The 11” GhostBed Ultimate mattress is an ideal choice for a cooling memory foam mattress, featuring 3 specialty foams and our signature cool-to-the-touch breathable cover. Note: manufacturing tolerance is 1”. Pressure Relief from Head to Toe - Experience the benefits of memory foam mattress with our gently contouring gel memory foam and exclusive Ghost Flex Transition Foam. This combination offers a firm feel, with the perfect mix of pressure relief, durability and motion isolation. All-Night Cooling - If you’re looking for a cooling mattress, memory foam is where it’s at! Open-cell, gel-infused memory foam keeps the core of the mattress cool. Our signature Ghost Ice cover provides a cool-to-the-touch sensation the moment you lie down, enhancing your sleep experience. Made in the USA - The GhostBed Ultimate cooling gel memory foam mattress is crafted in the USA with high-quality imported materials, meeting all CertiPUR-US safety and quality standards, ensuring high-quality and safe sleep. Bed in a Box Convenience - Simple unboxing and setup. Pull the sealed mattress out of the box, carefully cut the plastic compressing the bed, and watch your mattress fully expand. Enjoy our memory foam mattress twin size! Experience the best in pressure relief with the medium-firm GhostBed Ultimate, intelligently designed to keep your spine perfectly aligned and gently contour your body’s pressure points from head to toe.