Treat yourself to triple action cooling, more ActiveCool phase change material, and two extra inches of support. It's our tallest, coolest, most supportive mattress. The Nectar Premier Copper has a soft, breathable poly-blend cover with woven copper fibers for the most comfortable, cooling technology offered by Nectar. You will find 4” of pressure-relieving gel memory foam infused with phase-changing material to dynamically adapt to your sleep temperature, while cushioning your body's pressure points where you need it and adding comfort where you want it so you can stay asleep longer. Designed with 1” of tailored bounce back adjusting foam keeping you on top of the mattress without the “deep sinking” feeling you will get with other memory foam mattresses. Sitting on top of a sturdy 9” base layer of foam that will deliver the comfort and support you are looking for in your next mattress. You deserve to pamper yourself every night with the Nectar Premier Copper.