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