Cameron Diaz: Wednesday Workday in L.A.

Cameron Diaz checks her cell phone while leaving an office building on Wednesday (November 9) in Los Angeles.

The 39-year-old actress reportedly has an interesting method for falling asleep on flights.

Cameron “was spotted wrapping her head mummy-style in a black cashmere scarf on a 7 a.m. Virgin America flight out of JFK [Airport] to L.A,” the NY Daily News reports.

A source told the paper that Cam does this because “she feels so vulnerable asleep in public as a celebrity.”

10+ pictures inside of Cameron Diaz leaving an office building in Los Angeles…