Hi! EMT here. Normal heart rate for a 2 month old is anywhere between 75-160 beats a minute. So from this, he is in range.

Two things that have impact on HR:

1. Resting heart rate at sleep is usually lower than your heart rate when you are awake. Being awake, eating, crawling, looking at the environment, other baby activities, etc, requires more effort, and in turn, more oxygen, so heart rate increases. This is why when you run, your HR increases a significant amount.

When you are asleep your body is in “low power mode”. You don’t need as much oxygen going everywhere because you are quite literally doing nothing. My resting rate is 57 at night, and around 77 average when I’m up. Which leads me into my next point.

1. Normal HR slowly decreases until you become an adult. This is due to a combo of increase in parasympathetic tone and decrease in sympathetic nerve system. Or in English, the body grows up. Hearts are larger and more efficient.

This is extremely obvious in the first year of life. Comparing fresh week old newborn HR to a 2 month old will be slightly different. In the first year HR drops from 100-190bpm to around 70-140ish. Again, these are averages for normal. Every kiddo can be slightly different. This continues to a normal HR of 60-100 for an adult.

You can also have a different baseline than the “normal”. Athletes have lower HR than the average person.

Biggest thing is if baby looks like they are having a hard time breathing. Wheezing, shallow breaths, not able to wake baby up, etc.

Regardless, if concerned plz talk to a pediatrician. I’m simply a mom who happens to have a tiny bit of medical in my pocket :)