In Thawon Watthana, a hotel needs to offer a certain level of high-end amenities to earn a 5-star rating. These can include on-site gyms, spas and saunas, gourmet restaurants, luxury toiletries, premium bedding and more. What also sets 5-star hotels apart is their guest-focused standard of service. You can look forward to things like in-room massages, concierge services and nightly turn-down services. Some may also offer thoughtful touches like welcome gifts.