A newborn should typically feed about 8 to 12 times in 24 hours, which is about every 2 to 3 hours. Each feeding session may last up to 20 minutes or longer, though this varies depending on the baby’s skill and milk flow. Newborns often nurse for about 15 to 20 minutes on one breast before switching to the other, and sometimes they may nurse on only one side. Feeding should be on demand, responding to hunger cues, and newborns should not go more than about 4 hours without feeding, including overnight.