Nothing Compares to a Luxurious Cotton Duvet Made of 100% cotton sateen, our Home Decorators Collection Solid Duvet has a 600 thread count with a button opening at the bottom of the cover. The simple design of this duvet cover will give any room a crisp and clean look that works well with any design style. Order today. 600 thread count. Button opening at bottom. Available in a variety of colors. Monogramming available; please allow three weeks for receipt of monogrammed items.