Baby's sleep pattern

[Jinglepot]

Is it usual for a 17 week old baby to only sleep for 11/2 hours during the day (in total)? He does sleep well at night, settling from 9.30 pm to 4.30 am. Fed again, then sleeping until 7.30 or 8am. He's breastfed.
He's been like this for a few weeks now.
Any input welcome please. Thanks.

[beejaybee]

Every baby is different. As long as he`s not crying a lot I`d certainly not worry. My grandson`s the same age & he doesn`t sleep hardly at all during the day. He`s great at night & goes from 10pm - 8am. He`s bottle fed though.