milk intake

Hi, my 8 weeks baby boy has been drinking 110ml formula milk. Last night, he drank 110ml around 8+pm and slept till 3+am. So far, his longest sleep has been 5h. Last night was the 1st time he slept 7h. This morning, i fed him 110ml but it was not enough. He drank another 30ml. Does this mean that i should increase his milk intake to 140ml or should it remain as 110ml but only 140ml in morning when he sleeps longer the night before?