Bella started sleeping through at 3 months from 6.30 pm till 6.30 am and still does it now - very rarely will she wake at night and if she does then she gets her dumy back in and back to sleep she goes.
Our routin was set by her and is still the same to this day - up at 6.30 bottle and then back to bed for how ever long - bottle evey 4 hrs (was 3 when she was younger) and she has a sleep evey 2 hrs on the dot - all set by her. Now we have added solids and some times she has more or less day seeps but allways bed at approx 6.30 and always 12hrs or more - some days 14+.

Your bub will do it when ready - all bubs are different!

Kate