C.M.
My son who is twelve now went though the same phase... he was and is an early riser. I think it is just how some children are. He now wakes up between 5 and 6 o'clock. When i realized that he was happiest in the mornings, I realized that I needed to adapt. When he was old enough I would let him watch sesame street in the mornings and I would sleep on the couch next to him. It was difficult. My other two children are very different, one is grumpy if woken before 9 (he doesn't go to school yet) and the other wakes around 8. Anyways all children are different. Good luck!!