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Tesla CEO Elon Musk is reportedly sleeping under his desk and camping out at the company's Fremont factory for days at a time, according to a new article in the Wall Street Journal.

The story opens with a description of Musk's current sleeping situation: "On a chair next to him was a white caseless pillow that he used while sleeping on the floor under his desk. The billionaire CEO and chairman of the electric-car maker wasn't far from two general assembly lines making the Model 3 sedan, surrounded by the sound of banging metal."

The article goes on to explain that Musk had not left the factory in three days at the time of the interview.

The company has made 30,000 Model 3s this year, according to documents reviewed by Business Insider and confirmed by two Tesla employees.

This is not the first time Musk has garnered attention for his habit of sleeping at the office.

In April, Business Insider reported that fans and followers of the Tesla CEO created a GoFundMe page to raise money for a new couch in his office. In an interview with "CBS This Morning," Musk showed off a narrow and uncomfortable-looking couch where he had apparently been sleeping in recent nights, provoking outrage from some viewers. The GoFundMe campaign surpassed its $1,000 goal.

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