A few days after being home from hospital Jesse would wake every hour for a feed and just cry until he got it. After 3 full days of that i couldnt take any more and DH went out and bought some formula. He then slept for 6 hours. We decided to convert him to formula for a few reasons and now sleeps generally 6-7 hours then wakes, feed and is back asleep for another 4 and throughout the day has similar sleep patterns. But then every baby is different.