My two year old go down to sleep on his own fine and has always slept 730/8 - 7am. For the last 4 weeks he has been waking up lots of times in the night I have tried letting him cry it out but he gets into a state and doesn't go back to sleep. He has a dummy and most the time I can go in lay him down with his dummy and he goes back off! Why is he doing this? He isn't ill or hungry and nappy is fine. I'm so tired from it. Any tips would be great!! X