Fasting numbers is a challenge for a lot of people who have good control otherwise. The hormones early in the morning kick-in and can elevate blood sugar even though most of the night its normal.
There is research that shows an excessive attempt to control blood sugar actually accelerates progression of the condition.
Notwithstanding, some people find a small snack before doing to bed lowers their fasting blood sugar. Ideally, it should be protein based snack.
Check out "The Blood Sugar Solution", by M. Hayman, MD. He's got some other good tips for management.
Eating HFLC (high fat low carb) may help and or exercise and or drugs Metforman in particular can help.