I remember well that phase. As you get more comfortable, with or without a CGM you'll start reasonably skipping some of those midnight and 2am checks. You can try dialing back the night-time basal to the point where blood sugar should be naturally somewhat rising overnight. That way your last check of the night is 3 hours after the last bolus, and in theory there should be no more surprises. Unfortunately it doesn't always work out that way, but it's a strategy at least.

The biggest factor with persistent overnight checks is how does your son respond to lows? They will happen, and when they do, does he wake up crying? It's not something you rely on, so much as... I guess, factor into the risk analysis. I know how physically and mentally demanding it is to be up checking every 2 hours through the night, every night. Ultimately you'll find ways/strategies that will work for you to moderate that a bit, and the day will come where you can get a good night's sleep without feeling like you are taking a risk.

You know what I want.... an integrated lancet/meter/strip with just the right amount of light to make checking a sleeping baby in the middle of the night less of a balancing act... Balance iPhone against pillow to illuminate finger, position lancet and fire, squeeze the little finger to see if you aimed right, try to catch the blood drop on the strip, and try to get it all done before the meter times out and turns off. Man, the number of times I've gotten the blood to the strip just as the meter turned off (which sends me back out of the room to fetch another strip and start the whole process over again...)!!

Wish you best of luck, and it does get (somewhat) easier over time!