My sister-in-law has a 3 year old who used to be an awesome sleeper. He was in his own room, and would fall asleep on his own within a reasonable amount of time. Due to a new baby in the house, he had to move into a shared room with his 2 older siblings. Since that time, getting him to go to sleep has been ridiculous. He climbs on dressers, pokes the other kids (who are sleeping), takes all the clothes off the hangers, and anything else he can do to avoid going to sleep. They have a very consistent bedtime routine. Any suggestions for a very tired mama would be much appreciated. In the short-term, one older sibling may get moved out of the room.