Ftm so stupid question

LuLu • 👼🏻🌈 👦🏻 👦🏻 👨‍👩‍👦‍👦mommy too most beautiful baby boys M.N January 2020 H.N October 2021

But I feel like my baby can eat whenever I offer him.He eat at 3:45pm fall asleep and now again he is hungry 4:35 pm.How do I know how much does he eat and if is that enough.If he eats from bottle formula he will take 2 oz and fall asleep for 2 is hours.But for breast I don’t know