Eiichiro Oda writes and draws the biggest selling manga of all time, One Piece. Oda didn't do that by sitting around on his ass. Well, actually he did, because he works from a desk. But he sure didn't make One Piece so successful by lollygagging around.
In a recent manga interview, Oda was asked about his workday. He replied, "Well mornings...I get up at 5am, and I work until 2am. It's normal for me to sleep from 2am to 5am." This is something the 37 year-old manga artist talked about earlier this year. But, man, 21 hour shifts. That's a long day.