Disney has removed "do not disturb" signs from its hotels near its Florida Magic Kingdom, apparently because of the Las Vegas massacre that killed 58 people last year.
The signs have been replaced with "room occupied" signs at the Grand Floridian, Polynesian and Contemporary resorts near Disney World.
The signs tell hotel staff that guests are in the room, but they can still enter.
Walt Disney World News Today said the new policies are to ensure "the safety and security of guests and property".
Disney workers now have to enter each room at least once a day. Under the old rules, they had to avoid rooms marked with a "do not disturb" sign.
However, the Disney terms of service now say "the hotel and its staff reserve the right to enter your room for any purposes including, but not limited to, performing maintenance and repairs or checking on the safety and security of guests and property".