As Kathryn says, all babies are different, and I am sure it has nothing to do with parenting skills............I honestly believe it is luck of the draw!

Olivia slept through for the first time at about 10 weeks (the night of Mothers Day actually: best pressie she could have given me!!) and slept through erratically from then, from about 10pm-7am.

At 4 months we started a bath, boob, bed routine which meant she was in bed by 7, and she seemed to love this and slept through every night from this point on: 7pm - 7am. (I have no idea if it was this routine or pure coincidence that meade her do this though.)

Good luck, take no notice of what anyone else says: he'll do it when he is ready! (A GF of mine has twin boys of 15 months and they are still waking twice a night for feeds..........)