The terms "night nurse" and "postpartum doula" get used interchangeably, but they describe genuinely different roles. Understanding what each one actually does helps you figure out which problem you're trying to solve.
A night nurse — more accurately called a newborn care specialist — arrives at your home in the evening and handles everything baby-related until morning. She feeds, soothes, changes, and settles your infant through the night so you can sleep. If you're breastfeeding, she'll bring the baby to you to nurse and then handle burping, settling, and the next wake-up. Her job is your baby's nighttime care. Period.
A postpartum doula works during the day and has a broader scope. She helps with breastfeeding support, teaches you newborn care skills, does light housework, prepares meals, provides emotional support, and screens for signs of postpartum mood disorders. DONA International, the largest doula certifying organization, describes the postpartum doula's role as "mothering the mother." She's not there to take over — she's there to help you feel competent and supported during those critical first 48 hours and beyond.