That is called the Dawn Phenomenon. This happens when the body percieved the blood glucose to be too low, and it tell the liver, "I need more glucose". The liver then dumps the glucose into the blood stream, and this results in a higher morning reading.
The next time you see your Doctor or Diabetes Educator ask him or her to explain it in better detail. Take your log book so you can show them what your readings are both in the evening and in the morning.
In the meantime, do you have a snack in the evening? If not, consider doing so, usually a half an apple and a piece of cheese, or maybe some peanut butter. You need the carb to keep the BS stable overnight, and the protien helps so it doesn't flood the system but allows for a slower steady release.... There is a list of appropriate snacks in the Spark library. Continue to test and record your snacks as well so they can see what you have done and how it is working for you.....
I am glad you are testing at night before bed as it is important to know what is happening in your body. Testing is the best way to know test, Test, TEST