In Nong Kung, a hotel needs to offer a certain level of upscale conveniences to be rated 5 stars. These may include on-site gyms, gourmet restaurants, saunas and spas, luxury toiletries, premium bedding and more. What also sets 5-star hotels apart is their extraordinary standard of service. You'll enjoy things like concierge services, nightly turn-down services and in-room massage. Some may even offer additional touches like a welcome gift.