The Ancient Egyptians believed that each morning was a mini-rebirth. The sun god Ra's journey through the night, battling the forces of chaos to rise again each morning, was mirrored in each individual's own passage from sleep (symbolising death) to waking (symbolising rebirth).
The Greeks believed that waking up each morning was a transition from the divine messages in dreams back to the realm of the living.

And our own Aristotle, our own Pharaoh, Christopher the Great-Mate-Thanks-For-Asking, well, he just can't stop talking about the importance of waking up each day.