In Sao Dieo, a hotel must provide a certain number of upscale amenities to be designated 5 stars. These may include on-site gyms, gourmet restaurants, saunas and spas, premium bedding, complimentary luxury toiletries and more. What also sets 5-star hotels apart is their superior service. You can look forward to things like concierge services, in-room massages and nightly turn-down services. Some may even offer thoughtful touches like welcome gifts.