Check there site here for it is an calculator that allow you to determine what time to get up optimally according to when we sleep. This calculator gives you a time to wake up so you will not feel tired or fatigue. This is based on the sleep cycles we need. We all have 3 stages of non-rapid eye movement and one stage of rapid eye movement. These all are considered one cycle. A average of 5-6 cycles is healthy. So try their site and wake up when you feel most awake and out of the cycle.
Try it out… and perhaps you may never dread waking again.