Poor sleep can certainly contribute to raised blood glucose levels.
Do you find it hard to fall asleep when you first turn in for the night? I used to lie awake in bed until I adopted the same, non-negotiable bedtime every night. I see you go to bed at the same time and that's good, but it may take a while for your body's circadian rhythm to reset as a result. Keeping to a nightly routine is the single factor which has helped me the most to get a good night's shut-eye.
If waking during the night, for no obvious reason, is the chief problem, this may be closely connected with your diabetes and changes in blood glucose levels. It sounds like a catch-22 situation, but if you can bring your blood glucose down by reducing your carbohydrate intake during the day, you may well suffer fewer sleep disturbances.