Yes, both of them.
At the very beginning, LO1 lost a bit of weight and wasn't mega keen on eating so we had three or four days of waking him every three hours 24 hours a day to feed him. He stacked on the pounds, got into eating, and we dropped waking him at night, but thereafter I always woke him to feed him during the day. LO2 I woke to feed during the day, never at night.