Personalized Robot 1st Birthday Newborn Layette. Robot 1st Birthday - A cute little robot wearing a birthday hat celebrates your little one year old's first birthday. 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