I agree with LittleDragon...you don't have to do things like his parents do. You need to train him to sleep how and where you want him to. He will learn if you are consistent! I have a dck whose mom has to lie down with him for naps, another who needs a special mobile at home, another who barely naps, etc. They ALL sleep fine for me in their playpens with no mobiles, bottles, etc and they all put themselves to sleep and sleep for 2 - 2.5 hours. Why? Because I trained them to do that and they know they don't have a choice. Some kids resist more than others, but they do get it.