In Dolphin, a hotel needs to provide a certain amount of upscale features to earn 5 stars. These may include gourmet restaurants, saunas and spas, on-site gyms, premium bedding, complimentary luxury toiletries and more. What also sets 5-star hotels apart is their guest-focused service. You can look forward to things like concierge services, nightly turn-down services and in-room massage. Some may even offer additional touches like a welcome gift.