If you find yourself jolting awake in the early morning hours, it may not necessarily be due to unexplained insomnia. Instead, it could be the dawn phenomenon, a rise in early morning blood sugar ...
If you have type 2 diabetes or prediabetes, it seems mysterious and frustrating to be greeted with high blood sugar after an overnight fast-after all, one has not taken in any food since nighttime.
Most people have slightly higher blood sugar levels in the morning, but these can be significantly higher in some people with diabetes. Hormonal fluctuations and waning insulin are possible reasons.