In Grinnell, a hotel must offer a specific number of upscale amenities to be designated 5 stars. These may include gourmet restaurants, on-site gyms, saunas and spas, premium bedding, complimentary luxury toiletries and more. What also sets 5-star hotels apart is their exceptional service. You can look forward to things like nightly turn-down services, concierge services and in-room massages. Some may even offer additional touches such as a welcome gift.