A night time nanny, overnight nanny, or newborn specialist works in a family’s home, providing care for newborns and infants so that the parents or mom can get rest. As a night time nanny, you perform a variety of duties and responsibilities, such as feeding, swaddling, and getting the child back to sleep. Some night time nannies specialize in helping parents who have multiple children, such as twins or triplets, or those who have children born with health complications, while others may care for a single child.