Extra Firm Mattresses FiltersSizeSingleSmall DoubleSmall SingleDoubleKingSuper KingEmperorProduct TypePillow TopPocket SprungSplit TensionTENSIONExtra FirmFirmGentleMediumBRANDHarrison SpinksSpring CountOver 10000Price£0 - £499£500 - £999£1000 - £1499£1500+ Sort by Price Low to High Price High to Low A-Z CLEARANCE UP TO 40% OFFSELLING FASTHelmsley Egyptian Cotton MattressSelected sizes ready for deliveryWas £1,125 NOW £900Dual TensionZip & Link4 Tensions7500 Springs5 Fillings20% OFFThornton British Wool MattressSelected sizes ready for deliveryWas £900 NOW £720Dual TensionZip & Link4 Tensions5000 Springs3 FillingsCLEARANCE UP TO 60% OFFMiddleham Mohair MattressSelected sizes ready for deliveryWas £2,875 NOW £1,149Dual TensionZip & Link4 Tensions10000 Springs6 Fillings20% OFFHarrogate Silk MattressSelected sizes ready for deliveryWas £2,675 NOW £2,140Dual TensionZip & Link4 Tensions18000 Springs8 Fillings20% OFFClifton Cashmere MattressReady for delivery from 24th AugustWas £2,125 NOW £1,700Dual TensionZip & Link4 Tensions15000 Springs7 Fillings20% OFFRichmond Pillow Top MattressReady for delivery from 24th AugustWas £1,600 NOW £1,280Dual TensionZip & Link4 Tensions10000 Springs6 Fillings