Anyone who has seen “The Hangover” movie knows it takes a brave soul (and roofies, of course) to intrude on Mike Tyson while he’s sleeping without him catching you.

Well … some brave soul actually did it in real life just a few days ago.

According to TMZ:

Mike was staying at The Cosmopolitan of Las Vegas Saturday night — where he and his fam crashed after attending Stevie Wonder’s New Year’s Eve concert.

We’re told Tyson was sleeping like a baby … when all of a sudden, he awoke to rustling sounds and saw a flashlight. But by the time Iron Mike realized what was happening, the intruder had already run out of the room.

According to sources, security at the hotel was called and they are currently investigating the situation. Nothing was reported stolen from the room.

A rep for the hotel tells TMZ, “We have received a report of an incident that is currently under investigation. As always, guest safety is of the utmost importance.”

Thank goodness Iron Mike didn’t wake up in time … or else that dude would have been a late-night snack for the big guy!