As the name suggests, this is sprung mattress perfect for those looking for orthopaedic support. With a flow system to keep your body at the right temperature while sleeping, as well as pressure relief, so that you won’t wake up feeling stiff or numb in the morning. Discover the exceptional comfort and sturdy support of a Bonnell spring mattress. Crafted with springs interconnected by metal wire, this unique coil structure ensures a firm sleeping surface that’s perfect for those seeking robust support.