The Silentnight Open Coil Rolled mattress features 323 open coil springs which provide full body support from head to toe. Surrounded by layers of soft fibre fillings which are naturally hypoallergenic for extra comfort and pressure relief. Finished with a quilted cover for smooth sleep surface and added durability, the mattress is also doubled sided for extra lingevity simply turn and rotate every six weeks. Plus, this mattress is rolled and ready to go. making it ideal for convenience seekers.