Wakeup period

Wakeup at bit earlier today and yesterday.
May be it the period of wakeup early.

I really not so sure about that. I mean the wakeup period.
I found it will "want" to wakeup earlier after several weeks or days.
Then back to period that I found myself will "too lazy" to wakeup ealier.

This is my style of wakeup period.
Some weeks continue to wakeup earlier and some weeks will laying on the bed and do really want to wakeup.

It is a some kind of human being "mood"?
I really don't know. May be it's only my style. Not like the rest of others.