My DS is 15 months old. He has always been a good sleeper and usually goes to sleep following his bottle. He normally is awake when he finishes it, then drops off in our arms or shortly after we put him down. Since he has started walking, he has wanted to walk off after his daytime bottles. I know he is really tired as he is rubbing his eyes and leaning on me (and if i give in and take him out in the car he is asleep by the end of the road). I have been putting him in his cot, and leaving him to cry for a few minutes at a time. Then I go back in, calm him down (sometimes he doesn't calm at all), say night night, mummy loves you and leave again. He starts screaming again etc etc Right now he has been crying for about 45 minutes. Please help !