Contest Day 6

Wow, I'm late today, but with good reason.

I got caught up in a new series I'm plotting and then working on Brazen 5. Before I knew it I had to go to a family function, then onto bowling. I'm tired, but I plan on getting another 2,000 words written before I head off to bed.

But before I do anything else here is today's hints.

1.) When I come the night is all over.
2.) I can't do it in the dark.
3.) I always get it up in the morning.

What am I?