Therapedic’s Chiro-Pedic is built to perform! The Chiro-Pedic is designed for great value and blissful relaxation. The Danmask fabric upholstery mattress features a three quarter polyurethane foam insulator pad and half inch foam quilting. 357 Alternating Verticoil Edge system provides consistent durable conforming back support while reducing motion transfer for less partner disturbance. Curl up, stretch out, and then relax knowing you’ll be safe and sound because Thera-pedic’s Natural Performance products feature Safeguard Fiber® making the mattress fire retardant.