For NB and months changes they will have different sleeping/wake up period or time. My first born from NB till few months old (I cant recall age), she wake up every 3 hrs for milk (FM/BM) subsequently she change to waking up only once. Whereas my second born from NB till now (5 months old) she wake up once at night and she has short naps in the afternoon. Not too sure if there will be changes once they both in CC because I understand they have schedule/routine/timetable.