- 24 years old - Software Engineer - 8 hours - 11pm - 7am - around 9 hours optimal - Diet soft drink only (~2 standard 335ml cans per day), very rarely cof

- 24 years old - Software Engineer - 8 hours - 11pm - 7am - around 9 hours optimal - Diet soft drink only (~2 standard 335ml cans per day), very rarely coffee or tea, no energy drinks