hello. our premature baby girl weight 1500 now. we are giving mother milk to baby every 2 hours. from past 2 3 days she is not feeling sleepy at night and gets irritated. we checked all her needs like diaper chnge if ahe feel hot or hungry. we have to pick her and roam around our room. them she feels bit fine. what can we done so that she won't cry and can sleep too