For my boy, they would be pizza, pasta, ice cream, chocolate...If he has these, we do a dual
bolus because I believe these foods take longer to metabolize or absorb, so if we do a NOMRAL bolus, he would go low and then we would treat the low with some carbs and then boom an hour or so later (when the pizza or ice cream fully kicked in) he is high!
As you know, this is an unpredictable disease.
As a rule of thumb, I want my son 100 or above whe going to bed.