In Retle, a hotel is required to offer a specific amount of top-notch amenities to be rated 5 stars. These may include gourmet restaurants, saunas and spas, on-site gyms, premium bedding, complimentary luxury toiletries and more. What also sets 5-star hotels apart is their superior service. You can expect things like in-room massages, nightly turn-down services and concierge services. Some may even offer thoughtful touches such as welcome gifts.