my 2 month 11 days baby sleeps for only 5 to 6 hr during a day with gaps and have milk of 90 ml for each hour when he is awake. and in night he sleeps with an interval of 3 to 4 hours. n have milk around 80 to 90 ml. I am not sure why he sleeps less during a day ? he is gaining weight properly. but gets irritated during a day