I agree. In the past year I've probably seen 20 different articles about sleep. In equal amounts they espouse the philosophies that we don't know why we sleep,

I agree. In the past year I've probably seen 20 different articles about sleep. In equal amounts they espouse the philosophies that we don't know why we sleep, sleep is for safety from animals, and that sleep is for the consolidation of memories. I would like to see more articles about how to hack sleep -- we hackers have notoriously irregular sleep cycles :).