In Kumi, a hotel needs to offer a specific level of high-end amenities to be designated 5 stars. These can include on-site gyms, gourmet restaurants, saunas and spas, luxury toiletries, premium bedding and more. What also sets 5-star hotels apart is their outstanding service. You can expect things like in-room massages, nightly turn-down services and concierge services. Some may even offer extra touches like a welcome gift.