From 12am-11:59pm my one month old eats at least 35oz! Some moms told me that's a lot lol! we go for his one month check up today so I'm nervous what his doctors will say but he's still in newborn clothes and diapers (think we're moving up to 0/3 and size one really soon though). I feed on demand which is usually every 2 hours (sometimes 3)