The Eight Smart Mattress provides comfort and support that you can actually see. With a built in app, you can track how you sleep, warm up the bed, and wake up each morning. Built with four layers--2" reactive foam, 2" supportive transition foam, 2" contouring memory foam, and 4" high density support foam--you'll enjoy a bed that forms to you, bounces back, supports and is never too warm or cool. But, the real news is the proprietary technology layer that tracks sleep, warms up the bed, and connects with other smart home devices. And, if you're not sold after 100 days of experiencing the Eight Smart Mattress, they'll even come pick it up and give you your money back.