In Duck, a hotel needs to provide a specific amount of high-end amenities to earn 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 guest-focused standard of service. You'll enjoy things like concierge services, nightly turn-down services and in-room massage. Some may even offer thoughtful touches such as a welcome gift.