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In addition to tin foil-covered windows in his hotel room, the 39-year-old "Not Afraid" creator also puts white noise on speakers to muffle ambient sounds. "The noise and darkness gets Eminem the best night's sleep," a source told The Sun.
For a man who's raked in tons of cash by selling more than 90 million albums worldwide, it's no surprise he enjoys spending a little extra on having peace of mind. While touring, he's been known to rent entire hotel floors and use private elevators.
Last year, the rhymer requested a wooden pond filled with colorful koi carp fish as part of his backstage rider. Costing anywhere from $300 to $900, he apparently watched the fish swim to keep calm.