In Nas, a hotel is required to offer a certain amount of high-end conveniences to be designated 5 stars. These can include gourmet restaurants, on-site gyms, saunas and spas, premium bedding, luxury toiletries and more. What also sets 5-star hotels apart is their exceptional service. You can expect things like nightly turn-down services, in-room massages and concierge services. Some may even offer special touches such as a welcome gift.