In Mutual, a hotel must offer a specific level of upscale amenities to earn 5 stars. These can include on-site gyms, spas and saunas, gourmet restaurants, premium bedding, complimentary luxury toiletries 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 extra touches like a welcome gift.