My daughter had to be woken up, but now she doesnt go so long and unless she passes 5 or 6hr from last feed, I will let her wake up herself.

With my boys I nursed exclusively and I never woke them up to eat. Their Dr never told me to wake them up every few hours for them to eat and said that they know when they are hungry and will wake up on their own and if they go past 6 hours of sleep that's when you wake them up. But I personally wouldn't wake up your baby to feed unless your baby is having issues. Good luck