DS (15 months) is currently in a cot a night. But he's a little bugger for climbing so I don't think he'll be in it for much longer. I am absolutely terrified of when he's out of it. Currently I put him to bed in his cot, he gets up, bounces around and generally larks about for 10-20 minutes. Then eventually realises he's there for the night so lies down and go to sleep. There's no way this will work when he's in a bed. What do I do?