Ideal bed time BG reading. Insulin.

Because you don't know whether you will or you wont go hypo in the night, eat a small snack like a cracker with a lump of cheese as that should help. In life with insulin there's a lot of trial and error and we all learn after the mistake so to speak. If yr bg goes a bit higher when you get up, then you'll know what to do when bedtime comes again and won't need to eat at bedtime. Take some glucose tabs or jellybabies or something sugary and if you think that you are going low, try to test bg but if you don't feel able to, just eat or drink something.

I spent some time on a diabetic ward even though at that time was not a diabetic, one thing I did note was that all patients where offered before bed time a cup of hot milk or other drink and a couple of biscuits or some other snack of their preference this was to prevent an over night hypo