In Madrid, a hotel needs to offer a certain number of upscale features to earn a 5-star rating. These may include saunas and spas, on-site gyms, gourmet restaurants, 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, concierge services and nightly turn-down services. Some may also offer extra touches such as a welcome gift.