In Nikolski, a hotel must offer a specific number of high-end amenities to be rated 5 stars. These can include on-site gyms, spas and saunas, gourmet restaurants, premium bedding, complimentary luxury toiletries and more. What also sets 5-star hotels apart is their outstanding service. You can expect things like nightly turn-down services, in-room massages and concierge services. Some may even offer special touches like welcome gifts.