Feeding times for my 2mnth old

Renita
My boy's feedings are a but irregular. During the day he eats every 3 hours like clock work. Come night time it's either the same or he goes 4+hours of sleeping without eating. 
For example his last time eating today was around 8:45pm and he's still sleep...going on 4 hours not eating. 
It just seems weird for him to go without eating from 9pm until whenever. 
I'm actually afraid to go asleep right now because I feel like he will sleep all night without waking up and wanting food. Which sounds like a crazy thing and I should be excited about all the sleep I could get but my crazy mom mind feels like he needs food.