Personalized Worlds Best Cookie Baker Mom Newborn Layette. Cookie Baker Newborn Layette - White for children has colorful My Mommy is the World's Best Cookie Baker logo. 100% combed ringspun cotton 5.8 ounce 1×1 baby rib sleeper. 3/8" flatlock binding at envelope neck and cuffs. Back sleeve flap to protect hands. Elastic opening at bottom. Infant: 0-3 Months