Does anyone have any ideas on how to get my 16 month old to bed at night. During the day he goes down for his afternoon nap at about 12.30 and i just put him in the cot and he goes to sleep himself. But at night time (he is usually ready about 7 -7.30) if i just put him in the cot he will scream and scream until i pick him up, usually falling asleep in my arms at about 10.30. Any ideas?