In Boundary, a hotel needs to offer a certain amount of upscale conveniences to earn 5 stars. These may include saunas and spas, on-site gyms, gourmet restaurants, premium bedding, luxury bathroom products and more. What also sets 5-star hotels apart is their exceptional service. You can expect things like in-room massages, nightly turn-down services and concierge services. Some may also offer additional touches such as welcome gifts.