Day 3 in Polyphasic Sleep ChallengeMarch 30, 2018 in Polyphasic Sleep Challenge tagged challenge / polyphasic sleep / sleep / sleep cycles by Armin Day Three in Polyphasic Sleep ChallengeThird day in Polyphasic Sleep Challenge. How did I perform? It was surprisingly good 🙂 Watch the video and you know more about my day. [adzbuzzer]Read more about the challenge itself.