In Grasston, a hotel needs to offer a certain number of high-end amenities to earn a 5-star rating. These may include on-site gyms, saunas and spas, gourmet restaurants, premium bedding, luxury toiletries and more. What also sets 5-star hotels apart is their guest-centric standard of service. You can expect things like nightly turn-down services, concierge services and in-room massages. Some may even offer thoughtful touches like welcome gifts.