Hi, my baby age 23mts he is sleeping night time 11:30 pm around and wake-up every 2-3hrs duration and he drinks some milk, again he can sleep normal but every day he's sleeping activity is same and morning he is wake-up by 9:00 to 9:30am. actually I was changed he's sleep timeing but whenever I will do that he can wake-up in the morning 4-6am didn't sleep after that gap he can sleep normal again he is wake-up 9-9:30am. plz tell me the one useful idea. my question is why he's wake-up every 2-3hrs gap and when he can sleep without any disturbance.(gap)