Dear Doc, My son is 18 months, he is normal and healthy child. During the day he is very active and playful and has sufficient food. The problem starts in the evenings. He has his dinner by 7 pm and he has sufficient food and is active till about 8 pm. And then starts crying, we give him 150 ml milk in his bottle and he drinks all of it and again starts to cry. We then give him 100 ml of water which he drinks and he wants to hold the bottle in the mouth. He then sleeps by himself. However he wakes up around 1 am - 2 am and starts crying. We try giving him water but he keeps crying continuously. He his in his sleep only. Only after giving him another 80 ml of milk he sleeps again till about 6am - 7am. We are worried what could be the problem. Does he get any bad dreams, is he afraid of anything. Please advise, Rakesh