Comfort range high quality quilted mattresses with a mixture of 135 to 125 gauge springs encased in a 9 gauge frame to give that stability of comfort second to none all beds utilise top quality damask or stitchbond fabric 135 gauge open coil spring unit an open coil spring system is fundamentally one spring which runs continuously throughout the mattress 9 gauge frame firm frame support damask fabric cover single castors guest bed easily glides out on castors extending legs allow for