In Kelle, a hotel must provide a specific number of top-notch amenities to earn a 5-star rating. These may include saunas and spas, on-site gyms, gourmet restaurants, luxury bathroom products, premium bedding and more. What also sets 5-star hotels apart is their guest-focused service. You'll enjoy things like nightly turn-down services, concierge services and in-room massages. Some may also offer additional touches such as welcome gifts.