Is it true that formula fed babies sleep longer than breastfed babies?

Breastmilk is much more easily digested as compard to formula milk so a breastfed baby would feel hungrier faster. However, it may not be the reason that's waking them up in the middle of the night as the other mummies have mentioned. My son is formula fed and still wakes up in the middle of the night. Sometimes it's for milk, sometimes it's just to make sure I'm around and he would snuggle closer to me.