From memory I think he actually started sleeping better pretty much straight away. He didn't go to sleep in his cot to start with, everything was transitioned. This was built around how he settled best etc. So, by the time we got to him going to his cot at night he was actually being put down on our bed at first then transferred asleep into his cot when we went to bed. Then when he started to move a bit too much he was straight into his cot and now can be put down awake and go to sleep on his own. So, I kinda used a little bit of the old mixed with new I guess.