The sareer matrah gel coil mattress utilises two different mattress technologies to ensure the best nightrsquos sleep possible using both an open coil spring unit and a gel lex foam top layer means you are provided support and comfort in equal measurethe coil spring unit works to offer spinal support whilst you sleep and the way that it is structured allows for minimal roll together the layer of gel lex foam that sits on top guarantees a sumptuous sleeping surface with the innovative foam