From the Dr. Seuss Clothing Collection. Dr. Seuss Falling Down Yellow Girl's Sleep Set. This sweet girl's pajama set includes three pieces. The button down short sleeve top and the bottoms with ruffle edges are a daisy yellow color and feature Dr. Seuss characters tossed all over, with pink stripes running horizontal. The cami features The Cat in the Hat busy with Seuss activities and reads "Look At Me Now." The cami is made of 100% polyester jersey. The button up set is made of 100% polyester charmeuse with a soft satin feel.