Personalized Heart Belongs To Mummy Boy Long Sleeve Creeper. Halloween Long Sleeve Creeper - White with a cute baby boy mummy with two front teeth and his jack-o-lantern. He says MY HEART BELONGS TO MUMMY. For chillier weather, dress baby in this soft long sleeve creeper in a great fitting 1x1 baby rib. 5.0 oz., 100% combed ringspun cotton, 1x1 baby rib. White is sewn with 100% cotton thread, Flatlock seams, Double-needle stitched rib binding on neck, shoulders, sleeves and leg openings,Reinforced three-snap closure on binding.