I pump & bottle feed my 9 week old. He takes 4oz each feed ever 3 hrs during the day but only 1-2 oz at night. His night feeds are around 1am & 4am. Bedtime is 8pm to 7am. I tried to do everything to keep him awake (diaper change, stroke his cheeks, light on). Sometimes his eyes wide open & he’d play but still refuse to eat. Is it normal that baby eat so little at night (he used to take 3oz/ night feed up to 4 wo)? What can I do to encourage him to eat more or it’s time to consolidate the night feeds? If so, how can I do it?