Sleep help

Katie

My 5 month old son is ebf. For the last month, he has been waking up every 2 hours. I feed him and he eats and goes right back to sleep. I'm really tired of having to get up every 2 hours. During the day he goes 3 hours without eating. He does fine going to sleep at bedtime. He has a good routine and I put him to sleep drowsy and he falls asleep quickly on his own. Any tips to get him to sleep longer stretching at night?