NEW Pottery Barn Kids Dr Suess The Lorax Organic FULL Sheet Set Multi Colors NWT. Description from Pottery Barn Kids. They’ll fall asleep dreaming of the beloved Dr. Seuss character, The LoraxT. With this furry tree-loving friend by their side, sweet dreams are inevitable. Made of 70% organic cotton and 30% recycled cotton. Fitted sheet has universal elastic (elastic around the entire edge) for a snug, secure fit.