the title might seem obvious but here is the question, I am on slow release gliclazide and slow release metformin when I measure my bloods in the morning they have tended to be around 7 or just over- which I am happy enough with. However I have always been a bad sleeper and midnight late night snacker, which to a large extent I have stopped. But I have noticed that when I do have something to snack on in the middle or late night bag of crisps midget size mars bar , I know very bad, but my blood sugars in the morning are usually under six when I do this implying it is a good practice, which surely it cannot be. Simple question how ?