Have you tried a sleep sack, that helped us immensely with staying asleep. They make larger sizes 18-24 months and we got a 2 pack on amazon. We finally committed to sleep training at 15 months because our son was also a nightmare to get down and sleep through the night. The sleep sack and using a sound machine helped and after a few days he was sleeping through the night and going down so much easier. He also now associates putting the sleep sack on with bed or nap time.
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