celeste,
Frankly, during the daytime, I let my baby choose his own sleeping habit. When he cried, usually for 2 things, either hungry or sleepy. So if it's not milk time, my maid will give him pacifier and rock him and soon he doze off.... As for the nite, I did not play with him till he's tired, I just tuck in the pacifier around 9plus and he will sleep after. Actually most of time around 9plus, he will make some noise already.