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. When booking a stay for 1 — 2 guests, 1 set of double bed linen is provided, 2 sets of double bed linen are provided for 3 — 4 guests. If guests require an additional set of linen, the request must be made at least 2 days before arrival. Additional sets of linen are provided for an additional fee. An electronic rental agreement with passport data is signed with all guests.