The requirements for documents needed at check-in depend on the type of accommodation and the applicable regulations. For hotels and other accommodation facilities, a Russian passport, an international passport, or a driver’s license may be accepted. For apartments, serviced apartments, and other properties where check-in or contract conclusion is carried out according to the rules of a specific property, the required documents are determined by the property itself. The hotel is open 24 hours a day, but the hotel door will be closed from 24:00 to 5:00 in the morning. Customers need to contact the hotel to open the door if arrive at this time.