In Ozerki, a hotel is required to offer a certain number of top-notch amenities to be rated 5 stars. These can include gourmet restaurants, saunas and spas, on-site gyms, luxury toiletries, premium bedding and more. What also sets 5-star hotels apart is their superior standard of service. You'll enjoy things like in-room massages, nightly turn-down services and concierge services. Some may also offer thoughtful touches like welcome gifts.