As an overnight nanny, your job is to care for infants and children throughout the night, especially if the parents have to travel or work during the evening. In this role, you may cook dinner, enforce bedtime rules, and otherwise help maintain a household routine whether or not the parents are home. Overnight nannies often live and sleep on-site for as long as needed, which can be anywhere from a few days to several months. You may provide other help or support as needed. This job often involves driving with children, addressing issues preventing sleep, teaching specific skills, handling minor medical issues, and creating progress reports for the parents.