The airweave Top Mattress is comprised of revolutionary airfiber technology that’s designed to provide quality sleep for everyone. A true premiere in the bedding industry, the 1.8 inch top mattress is supported by a core that does not rely on springs or foam, but instead uses 90% air! This innovative technology promotes a deeper, more restful sleep since its high-rebound airfiber core instantly adjusts to your body’s every movement; thus users feel more refreshed and invigorated upon waking. It’s also completely washable, allergen-free and improves air circulation to control body temperature.