There is no point in staying in bed, so get up as soon as you open your eyes.
Daylight is an excellent synchronizer that gives a rhythm to activity periods.
The morning light also has euphoric properties that are known to energize the spirit. In fact, they best thing you can do is to get yourself outside as early as possible to take advantage of that morning light. As Dr. Coudron explains, protein gives the body fuel to function well. These chemicals encourage general alertness and are used as an accelerator. Since the organism's central temperature rises after awakening, all clocks are then in a particular stage which allow digestion to occur efficiently.