French pianist and composer Erik Satie was pretty anal regarding his schedule, even if the majority of his day was spent being “inspired.” Via Dangerous Minds:
My sleep is deep but I keep one eye open. My bed is round with a hole cut out to let my head through. Once every hour a servant takes my temperature.
Sleep with one eye open? Gripping your pillow tight? Satie’s dark compositions may be the missing link to Metallica. Below, a clip of Erik Satie and Picabia from Rene Clair’s Entr’Acte.