My 16 month old son is waking early every day between 4am and 5am. His cot is in our room still because we have two older children and my wife and I have tried all sorts of things to try and get him to sleep longer but without much luck. He was a fabulous sleeper as a baby but now even on the darker mornings he is waking early.
He goes to bed at between 6:30 and 7pm
Any advice would be greatly received