49 out of 1,157 hotels in the survey reported having a mattress stolen.
"Whereas many four-star hotels have taken to tagging their items to trigger alarms when smuggled off the premises, five-star hotels are less likely to confront thieves or to report the theft to police, Keilmann told CNN.
"In a lot of cases, they don't report it to the police, because they don't want to be connected to crime," Keilmann said."
This makes me think that these people are only staying at the hotel to steal things and choosing hotels accordingly, presumably using a stolen credit card as well to make them harder to track.