Personalized Monsters Love Naps Infant Romper. After a hard day of play, there's nothing better than a nice, refreshing nap. Monsters Love Naps Infant Romper - White, makes a great gift for nap-loving fans of "Jonathan James and the Whatif Monster" by Michelle Nelson-Schmidt. Meet your new favorite outfit! Keep dressing simple with this one piece, lap shoulder t-romper. Super soft and perfect for baby's sensitive skin. 5.5 oz. 100% combed ringspun cotton premium jersey (CVC Colors are 60/40; Heather is 90/10 combed ringspun cotton/polyester)