When will baby start to sleep lesser?

Perhaps 2/3 months onwards they have more awake time. My boy is 2.5 months now and can be awake up to 5 hours hours during the day, quite tiring for me sometimes and he tends to get cranky as he will tire himself if he doesnt get enough sleep. So i still ensure that there is a balance between naps and awake time during the day.

My boys usually gets lesser naps during the day when the enter 8-10 mths old. Below that age they will nap longer and also sleep longer during night. I will use aromatherapy for them to sleep better. Up till now my 8 mth old will nap 1-2 times a day for 2 hrs. Then will sleep longer thru out the night.