Do I have to wake newborn up to feed?

Erin

Is it necessary to have to wake my newborn up every two hours to eat?? when it reaches the two hour point and I check on him he seems the least bit hungry is is sound asleep without a flinch..he has at the normal amount of pee and poop diapers and he's gaining weight from his last weight check at the hospital since we saw his pediatrician today. He is formula fed.