In Mariupol, a hotel needs to provide a certain amount of high-end conveniences to earn a 5-star rating. These may include saunas and spas, on-site gyms, gourmet restaurants, premium bedding, luxury bathroom products and more. What also sets 5-star hotels apart is their guest-focused standard of service. You can look forward to things like nightly turn-down services, concierge services and in-room massages. Some may also offer additional touches such as a welcome gift.