In Zinkiv, a hotel must provide a specific number of top-notch amenities to be rated 5 stars. These may include on-site gyms, spas and saunas, gourmet restaurants, luxury toiletries, premium bedding and more. What also sets 5-star hotels apart is their outstanding service. You can expect things like in-room massages, nightly turn-down services and concierge services. Some may also offer additional touches such as a welcome gift.