NEW Pottery Barn Kids Bubble Dot Organic TWIN Duvet with Standard Sham NWT. Listing includes one Twin Duvet Cover and one Standard Sham. Description from Pottery Barn Kids. Our Bubble Dot Duvet is a work of art featuring multicolored abstract designs. Made from organic cotton percale, it’s a must-have for a crisp and cool sleep space. Duvet & Sham are made of 100% organic cotton percale; digitally printed design. Duvet cover is finished with interior corner ties and a hidden button closure to keep the duvet in place. Sham features side opening with 9″ flap and 3″ cuff. Certified GOTS (Global Organic Textile Standards): This product meets the gold standard of textile production – it exceeds organic fiber requirements, contains no restricted chemicals and meets strict social responsibility standards. Duvet cover and sham reverse to the same pattern as front.