In Zijderveld, a hotel must offer a specific amount of high-end conveniences to be designated 5 stars. These may include on-site gyms, saunas and spas, gourmet restaurants, luxury bathroom products, premium bedding and more. What also sets 5-star hotels apart is their extraordinary service. You'll enjoy things like nightly turn-down services, in-room massages and concierge services. Some may also offer extra touches such as welcome gifts.