Tuft & Needle’s down alternative duvet insert provides high-quality polyester fill which won’t clump or stick, for comfortable, cozy sleep night after night. With two weights to choose from, you’re in control of your comfort level. A sewn-through construction for light weight and baffle-box construction for medium weight ensures that the filling doesn’t slide or bunch up in the bottom with use. Sewn-in corner duvet loops allow for easy attachment to your favorite duvet cover, so no slipping or sliding around. Oversized dimensions mean you’ll never have to fight for the covers again.