Personalized Robot 6th Birthday Newborn Layette. Little robot 6th birthday I'M SIX Newborn Layette - White with cute robot, stars and red planet with the number 6. 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