Steve Pavlina did a series of experiments on this: https://www.stevepavlina.com/blog/2005/10/polyphasic-sleep/ https://www.stevepavlina.com/blog/2005/10/polypha

Steve Pavlina did a series of experiments on this: https://www.stevepavlina.com/blog/2005/10/polyphasic-sleep/ https://www.stevepavlina.com/blog/2005/10/polyphasic-sleep/ Googling it I was surprised to find that he did it 15 years ago. Times go by fast...