Many people assert by polyphasic rest , or the idea of take frequent naps throughout the mean solar day as opposed to sleeping in one retentive chunk . Leonardo da Vinci was one of the most notable advocate of this seeping method , noting that it helped him be more productive throughout the Clarence Shepard Day Jr. . This alarm clock construct stick with da Vinci ’s 3.5 / .5 rest schedule , meaning that an alarm will voice every 3 hours and 30 minutes signal that it is clock time for a nap . Another warning gadget will sound a half hour afterward , indicating that it is clip to wake up again . All - in - all , the da Vinci Sleep alarm clock will net you around 3 hours of shut - eye per day ( although I have heard da Vinci slept even less than that ) . Obviously , a agenda like this is n’t for someone who sustain a veritable 9 to 5 docket , or operates hard machinery — but it would be staring for bloggers , retired person and the unemployed . This particular clock is only a construct , but you could set a regular alert fair easily to seek this slumber method yourself . [ Yanko ]

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