They know exactly how many hotels were surveyed, but they don't post how many have had mattresses stolen; just that it's more than you would think. That tells me that this is a non-story. 5 mattresses over a five year period would surprise me. This can't be all that common because it's a crime that doesn't make sense at all. The cost of a single night's stay in a 5-star hotel is probably a good way to the cost of a decent mattress, especially a used one.