I am working on this same issue. What is working for me at the moment...do BG test if around 100-130 around 10:00 pm before going to bed I eat 5-10 G''s of carbs to get through the night. Seemed weird to take carbs when bg was high. If bg number is higher say around 140 then I eat nothing and that works for me. I still produce some insulin and it kicks in in the middle of the night if my body says its needing more carbs. If I do this correctly then my morning bg number is at 100 or even below. I have type 2. Took me some trys to get it right...this is what works for me. I know others who do differently. Hope you can get this figured out. Drove me nuts for a while. God Bless.

Could be what's called "dawn phenomenon."

Normally, your body will shut down it's sugar production system overnight. With dawn phenomenon, it keeps going, continuing to produce sugar. This makes your morning sugars higher than they should be. If it helps, 1 in 2 diabetics deal with this.

It is somewhat controllable by limiting afternoon and evening food intake, especially sugar and carbs. So, nothing after 6pm, or within 2 hours before bedtime.

Getting a good night's sleep is also helpful for controlling it.

Or it might not be diet-linked, like dawn phenomenon is.

Because you're a girl, and I can't guess your age from the cute kitty picture, it could also be hormonal. Your monthly hormones will throw your blood sugars out of whack on a regular basis, so it may not be something your doing or eating. It may just be your body doing its thing.

I'd suggest keeping a journal to track it for a while. This will help you figure out if its diet-related or not.

I've had to make sure I eat a bit of protein with fat (a small handful of almonds) just before bed to keep my morning numbers down where they are supposed to be.

128 was probably too low before bed and your blood sugar dropped so your liver had to give you a boost and it caused your blood sugar to go up.. (Liver Dump)

Look up Dawn Phenomenon...our livers dump stored up glucose, etc from the day while we're sleeping in order to prepare our bodies for the next day, this affects diabetics more because we do not have a normal insulin response.