my daughter is 5month old.she sleep in night for an hour or two hour nd drink milk whole night she repeat it.why she dint sleep for 5to 7 hour

A. maintain calm environment, dim lights at night even during feeding.  keep the day activity in bright light , do minimum interaction with baby at night. swaddle well till 3 months of age. make use of her favourite blanket/ toy, so they feel secure.