Oh, I don't believe in that even for a second, maybe back in the days when Oda was paying attention to his writing, he was, indeed sleeping 5/6 hours a day, but not 3, and not now. Oda doesn't give a shit what he writes, people eat his shit while calling every chapter "peak fiction."
Oda isn't Elon Musk ok, he's not running 3 corporations at the same time, he's just writing a story with insanely poor quality while having at least 3 editors to help him. There's no fucking way that Oda sleeps 3 hours a day, for what fucking reason? Are you telling me that writing one piece is so fucking difficult and time consuming that Oda doesn't have a time to sleep? Oh give me a break with this shit.