Made with thick polyester/cotton blend, tailored to be seamless and smooth. The headboard is from sustainable harvested wood and is part of the Green Collection.

Williams Sonoma Home is proud to introduce our Green Collection. Creating truly great design with an eco-friendly point of view, our Green products are noted by the symbol above, and are distinguished by any one of the following characteristics: Organic, Recycled, Reclaimed, Sustainable.
Dimensions:
Queen Headboard, 65″ x 5″ x 50” high
King Headboard, 83” x 5″ x 50″ high
Cal King Headboard, 77″ x 5″ x 50″ high

Via WSHome