Waking baby to feed?

B

My breastfed daughter is 11 days old and is a serious sleeper a night. She feeds pretty frequently during the day, every hour and half to two hours, but at night she will just keep sleeping and has very little interest in eating when I wake her. When did you start allowing your little one to sleep through the night? In the hospital they told me it was ok to let her sleep as long as she was getting the appropriate amount of feed time in per day and having the recommended amount of dirty diapers,’but when I took her to the pediatrician last week they said she needs to be woken up to eat every 3 hours at minimum 🤷‍♀️ I didn’t think to ask how long we need to do this for... I have another appointment on the 5th so I will ask then, but I was curious to see what other mommas did 😊