Personalized Healthy Hearts Newborn Layette. Healthy hearts keep the beat with three hearts beating on drums is a fun phys ed gift design promoting a healthy lifestyle. 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