In Kaeng Si Phum, a hotel needs to provide a certain amount of upscale conveniences to earn a 5-star rating. These may include gourmet restaurants, saunas and spas, on-site gyms, luxury bathroom products, premium bedding and more. What also sets 5-star hotels apart is their outstanding service. You can look forward to things like in-room massages, concierge services and nightly turn-down services. Some may even offer special touches such as welcome gifts.