My suggestion would actually make a little noise at first with tiring them out. One of my kids favorite toys is a toy called DA BIRD. I got it from Drs. Foster and Smith. it is a feather tied to the end of a pole and when it flies through the air it sounds just like a bird flapping it's wings. After a 10 minute play session with this toy they are plum tuckered out and sleep all through the night.