In General Plutarco Elías Calles, a hotel must provide a certain number of top-notch amenities to be designated 5 stars. These can include on-site gyms, gourmet restaurants, saunas and spas, luxury bathroom products, premium bedding and more. What also sets 5-star hotels apart is their guest-centric service. You'll enjoy things like nightly turn-down services, in-room massages and concierge services. Some may even offer special touches like welcome gifts.