And here's another way of looking at it. When you go to sleep you are basically fasting, the body knows that when you awake you will be using a lot of energy finding food so the liver dump (or dawn phenomena) is the process of flooding your bloodstream with glucose to give you the energy to find food. It is a natural process but everyone reacts differently to it. Some diabetics find it difficult to deal with and some do not and for some, like me, the liver dump causes negligible differences. Hope this helps.