Different answers depending on what you eat as a snack in the (middle) of your sleep cycle

Eating protein, which can be converted into blood sugar "if needed" can prevent a low which could prevent the Symogyi Effect (release of extra blood sugar if you get a little low at night) which could ultimately lead to a lower FBS

If you eat at least 15 carbs "about 3 hours" before you typically wake up that will trigger an insulin response from the pancreas (the equivalent of about 10 units of insulin - it typically produces "less than" 1 unit per hour during the night) so that would not only deal with carbs in whatever you ate but also burn up some of your fasting (hepatic) sugar from the liver that is floating around which could lower your FBS

But, in some cases you may just be piling on more sugar and end up with an elevated FBS

If "some" eat carbs during the night and their insulin production is low and their insulin resistance is high, and their hormones are a little out of whack and the liver throws a bit of a sugar party, then all of that could conspire to really elevate your fasting number

So the answer is - it really is "individually driven" - we have a metabolic disorder and no two people will react exactly the same way

But "generally" the closer your A1C is to 6.0 (or below) the more likely a small snack in the middle of the night would result in a lower FBS

I had Birthday

If its working to lower your morning Bs I would continue. It worked for me for yrs . Than stopped ! But now The ozempic takes care of my “Dawn phenomenon

Happy Belated Birthday PaulaWalker.

I never eat just go back to bed