How often and how long?
Breasfed babies generally eat more frequently than formula-fed infants. Some newborns need to nurse every two hours; others, every three. As they get older, they are able to go longer between feedings, because heir stomach capacity enlarges and their mothers' milk production increases. What was the feeding schedule for your baby?
Mark had his breast milk every 2 hours, and then every 3 hours, 15 minutes on each breast.