In Tan Diao, a hotel must provide a specific number of upscale amenities to earn a 5-star rating. These can include gourmet restaurants, on-site gyms, saunas and spas, complimentary luxury toiletries, premium bedding and more. What also sets 5-star hotels apart is their guest-focused standard of service. You'll enjoy things like in-room massages, nightly turn-down services and concierge services. Some may also offer thoughtful touches like a welcome gift.