I'm very happy happy with our new Casper mattress cover. We originally bought a Sealy cooling, waterproof mattress cover for our new mattress and hated it. The old cover was noisy, hot and never stayed in place. While a little more expensive, this one is totally worth it--it fits better, is breathable and doesn't feel like we are sleeping on plastic. Shipping was fast; wish we had splurged on a nicer mattress cover from the very beginning.