how long do your babies sleep?

As

Wow!!! my 7 week old son has always woken up at exactly 2 hours to eat. all day and night.

tonight he slept 4 hours!

he ate at 840pm, 1240am, and430am!

I woke up at 4 staring at him, getting nervous. Like why arent you hungry!?

how long do your babies sleep?

do you wake them up to eat if they go too long?