I have had very good sleepers one sleeping through by 3 wks and one by 6 wks. They would have last feed at 10pm sleep till 6am . Feeds were at app 6am, 10am, 2pm, 6pm and 10pm. Sometimes i wuld only get 4 feeds in instead of 5. I tried to wake them if they slept more than 4 hrs but generally left them. I found they got themselves into a pattern and jessica would feed 3hrly during the day and go from 8pm-7am without a feed. If they put on weight then things are prob ok but shee the MCHN or GP if you are concerned.

Cheers michelle