Coolvie 10 inch Hybrid Mattress allows you to enjoy a wonderful and comfortable sleep at an affordable price. With a dual layer comfy memory foam, it conforms and supports your body shape, relieving pressure points and helping you relax. And the thick base is made of independently encased coils, designed to eliminate motion disturbance and keep you sleeping soundly. CertiPUR-US certified foam is durable and also ensures a safe and healthy sleep. Compressed in a box for easy shipping. Just simply unbox, unwrap, and unroll—allowing up to 48 hours to fully expand. Fits most kinds of bed frames, including box springs, flat frames, slats base, or even the floor. Multiple sizes and thickness are available for adults and kids.