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