Infant sleep is a very interesting and hotly debated topic - and it's not one I love. I don't even allow much discussion in my breastfeeding support group because of that. The bottom line is that babies wake for various reasons - and often it is to nurse. There is nothing wrong with your child if they are waking for night feeds past six months. I love this article about why older babies wake to nurse at night. I always tell people that the one thing you can be sure of during the first year is that sleep rarely stays the same. I see mothers devastated that their child who once slept through the night is having trouble sleeping - but rest assured (pun intended), your baby is not abnormal. They could be going through a growth spurt, a wonder week, etc. Additional Reading: Gentle Ways to Help Your Baby Sleep Through the Night