Is there a breathing technique that I sleep only 2-4 hours a day and still would be healthy?

Some new Tesla advanced online: question Rackuzius Robert : Is there a breathing method that I sleep only 2-4 hours a day and still be wholesome Nikola Tesla is quoted as saying: Yes, I sleep two hours a day, but when I sleep, I sleep effectively, artistically, since sleeping is an art, such as deep breathing, which must be learned. This is one of the secrets of the Orient, which for me is not a mystery. Following sleep, but short, I practice some reason to do so in order to balance the

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