Get a good night's sleep with the Casper Original Pillow. We invented a unique pillow-in-pillow design that’s built to satisfy all sleepers. The Casper Original Pillow combines a supportive inner pillow with a soft outer pillow, so you don’t have to pick one or the other. The outer pillow is made with a breathable percale weave, and the 100% cotton cover lets air flow through so you can stay cool. The inner pillow has nearly a billion tiny fibers are blown into the pillow, creating an adaptive surface that supports you throughout the night, no matter your sleeping position. A 2-inch gusset serves as the backbone of our pillow’s construction. This allows for better neck alignment and an evenly distributed fill. Each down-alternative fiber cluster is individually blown into the cover. This advanced process prevents clumping and ensures your comfort. And if you're always looking for the cool side of the pillow, you're in luck- both sides are the cool side! Get a great night's sleep with comfort and support when you use the Casper Original Pillow.