M.W.
my son never took more than a 45 minute nap or slept longer than 4 hours at night until he started crawling. Once he became mobile his sleeping greatly increased. Once he started walking he started sleeping even longer. If I had realized this I may have tried to exercise some sleep into his life earlier. He is my only child and I have trouble sleeping so I just assumed he would too. But I think he just had extra energy the wasn't using. I only breastfed him till he was about 8 months old also. Good Luck. I don't wish a sleepless child on any one!!!