Premium Grade Sofa Bed Replacement Pocket Spring Mattress 120cm x 182cm x 12cm. Created from supportive pocket springs with a textured cotton rich cover, offering a mattress without the need for turning, bringing you optimum support throughout the night. Sofa bed mattresses are designed for occasional/guest use and not every day. The quality and feel of the mattress will depend on the quality of the base that it is used on. Colour and Design of fabric may vary. If you require a size different to the sizes offered please contact us for a quote.