I voted that I never tried it, but Ive been lucky to get 2 really good sleepers. From birth I put them in the cot, and they would put themselves to sleep. Obviously there were many times they would need to be rocked to sleep, but by the time they were 7-8 weeks old they slept through the night from 8pm-7am.

As a result of this method, I have never needed to use controlled crying because my 2 learnt to sleep by themselves from early on. This is not to say that they dont ever wake in the night, because they do, and I do enjoy brining them into our bed to co-sleep when this happens.

I would only ever try CC as a last resort, if absolutely no other method worked. However I could NEVER let my baby cry for 45minutes. Everyone should do what they are comfortable with and most importantly what they feel works for them and their baby.