Is polyphasic sleep plausible?

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I can't find any trustworthy studies on polyphasic sleep, can you? It is a topic that, if further researched, could completely change humanity. I'd like to try it but I have a hard time convincing my intuition that my body can also rest and restore it's energy in way fewer time. I'm not entirely sure if I can unite polyphasic sleep with a very active lifestyle including a lot of exercise and hard work in a healthy manner.
What does /sci/ think about the principle of partitioning sleep?