In Oma, a hotel must offer a specific number of high-end conveniences to earn 5 stars. These can include on-site gyms, saunas and spas, gourmet restaurants, premium bedding, complimentary luxury toiletries and more. What also sets 5-star hotels apart is their exceptional service. You can expect things like in-room massages, nightly turn-down services and concierge services. Some may even offer thoughtful touches like welcome gifts.