Duvet CoverKAILU's duvet covers are precision cut to eliminate gaps and wrinkles. Crafted from cotton sateen, a four over one weave that balances softness with structure, each cover delivers a subtle sheen, graceful drape, and that satisfying crispness you feel each morning. For those seeking the ultimate experience, we also offer a made to order pure silk cover. Made from the same OEKO TEX certified mulberry silk as our signature pillowcases, this version feels