Ella started sleeping through at around 8 weeks - by that I mean 10.30pm-8am. We very gradually brought bedtime forward and had some hiccups, but we've been lucky to have a good sleeper. She used to go down at around 10.30pm and wake up at 3-4am for boobie, then go back sleep from birth. The worst night was the night we brought her home and she was awake hourly, I was sure that was how it was always going to be! Now she's down normally 7-7.