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