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. For double occupancy with separate sleeping arrangements, an additional fee of RUB 500.00 per night applies. Sleeping options include two beds or a bed and a sofa.