"Waking up several times a night is not strange-this is what babies are designed to do. Constantly demanding interaction and attention is not the sign of a hyperactive infant-this is what babies need as social animals. And if you, as a parent, feel the urge to sleep with your baby or breast-feed her until she is two*, that's okay, because for millions of years people have been doing exactly that."
Meredith Small in the book Our Babies Ourselves
* which I would amend to AT LEAST two