Well i learnt early on that you need to start doing this STRAIGHT away and they get used to it!!!

With my first DS there is NO WAY he would stay asleep, if i got home and he was still asleep i would drive the car out under the pergola and put the windows down and sit outside with him till he woke up!!!! Never left him alone or anything!!

Then with my next two babies i just started transferring then as soon as they were born and they were used to it!! Even now at 3 and 2 they will still stay asleep or open their eyes and i tell them to go back to sleep and they do!!

Start early that it the trick!!!! Worked for me anyway!!