In Grassy, a hotel needs to offer a specific level of upscale amenities to earn 5 stars. These can 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 outstanding service. You'll enjoy things like concierge services, in-room massages and nightly turn-down services. Some may even offer special touches like a welcome gift.