Wake up

I wake up around noon almost everyday recently.
I even wake up at 1.00 yesterday. But then, I was exhausted at that time.
Waking up late is not a good habit. Not good at all.
I remember I read an article about the time our organs functions to rest and discharge the toxin of our body. Undoubtedly, waking up late will throw my body functions into confusion.
Better try to sleep early then. And wake early.