This set is produced only in fabric upholstery. The filling and the forming material for the soft elements of the seats and backs is polyurethane foam of different density and sizes according to its position in the product. Padding polyester is used as a flooring material and as a spring layer between the cover upholstery material and the foam. The 'French clamshell' mechanism is used to transform the sofa into a bed. This mechanism is often installed in the most compact, stylish and fashionable furniture. The mechanism is made of steel and has a 6 cm foam mattress located on it. The height of the mechanism in the unfolded form to the top edge of the mattress is 45 cm. The frame is made of solid oak and board (MDF, veneered oak). An orthopaedic grille is attached under the soft elements of the seats. The front supports are made of solid hardwood. All the furniture is packed and prepared for self-assembly with clear instructions. All the furniture is brand new and ships in its original packaging.