Down Mattress Topper Like sinking into a marshmallow-stuffed cloud each night. Our 750 fill power feather bed adds three inches of luxury to your mattress. Its dual-chamber design provides two layers of down and feathers for snug, enveloping comfort and uses three-dimensional baffle box stitching to keep the fill evenly distributed. Finished with a soft 100% cotton sateen shell. Made of premium European white down and feather fill. A gusset height of 3 inches adds a super plush, five-star hotel feel. Baffle box construction prevents shifting. Made in the USA of imported materials. Features a 100% cotton sateen shell. Reinforced with a double-stitched piping seam. Comes with a 3-year warranty. OEKO-TEX® STANDARD 100 21.HUS.61798 Hohenstein HTTI. RDS certified by CU 887265. Our topper features a dual-chamber design. The top chamber is made of premium, all-natural European white down: 85% down and 15% down and feather fibers. The bottom chamber is made of 100% feather fill. The shell is made of soft, 100% sateen cotton. Dry clean only. Fluff it monthly to keep it looking and feeling its best.