With 1500 pocketed springs the relyon pocket ortho memory sapphire 1500 mattress can respond to different areas of your body through individual springs offering support exactly where it is needed the springs are topped with a layer of 50mm memory foam which react to your body heat and mould to your individual shape it also boasts cool comfort a temperature and moisture regulatorthis mattress further includes a soft layer of hypo allergenic reflex foam the density and texture of both the m