Any advice will be greatly appreciated! Consistently from 14 months-19 months has had a 2 hour nap from 1-3. Moved him into a bed at 16 months as he's very tall for his age and climbed out of the cot 3 times and once hurt himself. This was never a problem until now. Hes all of a sudden decided not to nap at all. Runs around the room, plays (never cries). Just won't sleep. Wouldn't be a problem but he is exhausted by his bedtime. Then wakes up at night because he is overtired. He is currently surviving on about 8 hours sleep in total. I've tried keep putting him back in bed, telling him to go back to bed, but nothing works!