I think I've told you all this before, but: my first baby would not sleep, but he was pleasant enough about it. He woke every 2 hours for 18 months no matter what- he didn't always cry though. I think that was worse in the long run than having a baby who fights falling asleep- having your sleep constantly interrupted. . My middle child slept 6 hours from birth- I was afraid something was wrong with her. My youngest child is almost 5 and still fights falling asleep every night, although once asleep, he was a decent sleeper from a fairly young age.