Chicago Storage Arm Style 8-Inch Loft Inner Spring Futon Sofa Sleeper Bed, Queen-size, Walnut Arm Finish, Twill Huntergreen Upholstery With its wide arm surface plus storage, the Chicago Futon Sofa Sleeper serves as a perfect sofa by day and perfect bed at night Medium to firm comfort level; 13" of materials including 350 coil count Bonnell spring, the best cotton & fiber foam batting compressed to loft to 8"