Winner of Best Duvet, Women's Health magazine Healthy Sleep Awards, 2021 Named Best Luxury Comforter, Women's Health magazine 12 Best Cooling Comforters, 2021 This raw silk-filled duvet is the product of old-world artisanal handcraft and modern design, resulting in a uniquely luxurious sleep experience. With an ultra-smooth feel and evenly pressured weight, our duvet is filled with fluffy raw silk that is hand stretched into blanket-size layers, stacked, and then hand stitched to prevent shifting and cold spots. This all-season duvet set has been thoughtfully designed for year-round comfort. It has a single or dual core, allowing you to purchase your ideal weight and easily customize your duvet for warmer or cooler months. Plus, every set comes with a washable duvet cover to ensure a long life. Experience thousands of years of heritage, all from your bed. RAW SILK CORE(S) 100% long-strand mulberry silk fill 100% cotton fabric casing Allergy resistant / dust-mite free Naturally temperature regulating Supremely breathable Includes 8+ ties to correspond with duvet cover Hidden zipper closure DUVET COVER 100% cotton Sateen fabric: classic 4 over 1 sateen weave using cotton yarn in both warp and weft, elegant drape, slight sheen White fabric, with choice of white or black piping Perfectly fitted to raw silk cores to prevent gaping and bunching Includes 8+ ties to keep raw silk cores in place Hidden zipper closure Queen: 86 in. x 86 in.King: 94 in. x 104 in.Emperor: 98 in. x 110 in. We recommend Emperor for a Cal-King bed, and Queen for a Full or Twin bed. To maximize the effectiveness of raw silk, our duvets have been designed to “float.” If you prefer a draped style or wish to tuck it under your mattress, we recommend choosing the next size up.