[5partan]

Because of the schedule of his family, and i supose out of coziness, as you need the discipline of a genius (da Vinci, Einstein, Fuller, believed to be polyphasic sleepers). For me the Dymaxion pattern would fit nicely (30min every 6 hours) as i hardly need more than 5.30 hours for anything without being able to interupt it with a refreshing powernap. Although my ambitions doing daily triathlons would have to rest then:)