2 months old baby night sleep

My 2 month-old son (2m and 20 days) is 6 weeks premature. He was born at 34 weeks. I feed him 100ml breastmilk every 3hrs during the day and 120ml every 4hrs at night where I always wake him up to feed. So thats a total of 7 feedings a day Can I feed him more often at daytime and let him sleep at night?