Easily upgrade your mattress with this triple chamber down & feather mattress topper. Designed with 3 separate chambers that each offer extra loft and comfort for a great night’s sleep. The top chamber is filled with a layer of cotton to provide a barrier to the natural fill below. Down in the middle chamber delivers additional heat retention for those cold nights while the feather fills in the lower chamber provides loft and support. The 300-thread count cotton cover is a breathable, cozy fabric that will last for seasons to come.  Included: 1 Mattress Topper(s) Features: Deep Pocket Bedding Construction: Box Stitch Thread Count: 300 Bed Size: Twin Measurements: 39 Width/Inches, 75 Length/Inches Mattress Depth: Up To 18 In Deep Base Material: 100% Cotton Filling Content: 86% Duck Feathers, 14% Polyester Care: Dry Clean Only Decor Styles: Casual Certifications And Listings: Oeko-Tex Standard 100 Thickness: 2 - 2 1/2 Inch Comfort Level: Moderate Protection Level: Basic Mattress Securing: Skirt Mattress Pads & Toppers Type: Mattress Toppers Country of Origin: Imported Contains RDS Certified Down: The goal of the Responsible Down Standard is to ensure the waterfowl in the down supply chain are treated humanely.