In Gönnern, a hotel must provide a certain level of upscale features to earn 5 stars. These may include on-site gyms, gourmet restaurants, saunas and spas, luxury toiletries, premium bedding and more. What also sets 5-star hotels apart is their superior service. You can look forward to things like in-room massages, nightly turn-down services and concierge services. Some may also offer thoughtful touches like welcome gifts.