The Pure Comfort Futon Mattress is designed to provide comfort year round in any sleeping environment and can be custom made to fit any frame. Our Pure Comfort Mattress features a core of 733 4? Micro Coils for added support. Our Pure Comfort Mattress features a layer of of 100% USDA Certified Organic Cotton, and is filled with Humanely Grown American Wool for optimum comfort at any temperature. This product is absolutely chemical free, hypo-?allergenic, dust mite resistant, and will not support mildew or bacteria when taking proper care.