Formula mommas

Ca

How much does your baby eat? My son is still eating every 3 hours. I feel like he should be going longer stretches now since he’s almost 5 months old. I’ve been giving him 4oz at a time. Doctor says he doesn’t need more than that. She says he may want more but doesn’t need it and offering more will stretch his stomach until does end up needing more. He was a great sleeper only getting up once at night but he’s back to getting up every 3 hours. I don’t know if it’s because he rolls around in there and doesn’t wanna be on his belly anymore, because he is hungry (which I doubt) or the dreaded 4 month sleep regression. Any tips?