3 m/o naps

My 3 m/o is sleeping through the night.

Dream feeds at 11 PM, wakes at 6 am to eat, goes back to sleep until 9 am, eats again and then we are up for the day.

With the exception of a couple nights here or there when he will sleep right from 11 PM to 8 am.

How do I go about naps? Like they say they can only handle so much time awake, but my son will not nap after 5 PM, he is awake for 2-2.5 hrs before bedtime.

And in the morning he isn't super tired in an hour like he used to be

Should I just try to pay closer attention for his tired signs?

He was napping 1 hour after eating for 2 hours (then he would wake up to eat again) and be up for an hour and so on. But now its different and I think that's because hes sleeping through the night

Any pointers/tips/similar experiences would be appreciated!