My son slept through the night at 6 weeks until he was 6 months (and he's been a hellish sleeper since)...he was EBF that entire time. I would dream feed him around 10pm if he was stirring in his crib, but normally, I'd let him sleep as much as possible. I would probably continue dream feeding until your LO is atleast 3 months, and then maybe try and cut it out.