You’re on this page right now if you are interested in learning more about night nannies. A night nanny is similar to a postpartum doula, but commonly a night nanny cares only for the child/children, while a postpartum doula cares for the entire family. At International Doula Institute, we call it Whole Family Support. The word postpartum simply means after birth! So a postpartum doula provides support in the home after the birth of a baby or addition of a baby.