This luxurious mattress features a 3-inch chemical-free wool wrap that enhances comfort while providing exceptional orthopedic firm support. It stands approximately 9.5 inches thick, making it an ideal choice for those seeking a traditional innerspring structure without compromising on quality. The Royal-Pedic name is synonymous with superior craftsmanship, and this model has been our best seller for good reason. It caters perfectly to individuals with latex allergies or chemical sensitivities, as it contains no chemical flame retardants; instead, the wool serves as a natural flame barrier.