The shetland superb mattress is generously upholstered in pure hand teased real shetland isle wool with softly needled british fleece wool a covering of worsted wool fabric and woollen tufts finishes the mattressthe shetland superb is partnered with the wool sovereign divan 1 344 hand nested calico pocketed springs based on 150x200cm size on a screwed and glued solid timber frame the divan frame is covered with insulating wadding and the ticking case is calico lined for added protection