For those looking for a softer or more flexible sleeping area the airsprung caithness divan with sprung mattress is a good option this caithness is made up of superior quality materials and features duraspring mattress with 135 gauge spring unit system of high tensile wire for gentle support and comfort to allow all people to sleep in their own zones the caithness avoids the roll off or roll together for a sound night sleep it also features attractive damask fabric ticking and is finished