Personalized Dog and Mouse Newborn Layette. This unlikely pair found their very best friends in each other. From the children's book "Dog and Mouse" by Michelle Nelson-Schmidt comes Dog and Mouse Newborn Layette - Red. 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