In Oshikiri, a hotel needs to provide a specific amount of upscale amenities to be designated 5 stars. These may include gourmet restaurants, saunas and spas, on-site gyms, luxury bathroom products, premium bedding and more. What also sets 5-star hotels apart is their guest-focused service. You can look forward to things like in-room massages, nightly turn-down services and concierge services. Some may even offer additional touches like a welcome gift.