For the first few months we broke it down into shifts.

If I remember correctly I might have done the 8pm-1am shift of feeding, putting down, etc.

Wife did 1-5am then I did 5-9am

We adjusted with him and with our own schedules. May need to switch off who does graveyard.

We also had special considerations with our son having some trouble eating and had to feed him more frequently than most infants to get his weight up.

I’d also say sleep when the kid sleeps if possible to get some sleep in.