The very best most luxurious zip & link mattresses we have. Our Orwell has the most springs for a divine level of comfort & support & the added luxury of Yorkshire wool creates a sumptuously soft layer. The revolutionary MD plus spring system means our Orwell mattress will contour to the shape of your body for a deeply luxurious night’s sleep. This superior mattress has all-natural hand teased fillings for the utmost support & comfort. A zip cover is included for additional comfort Available in tensions 4 (soft) to 8 (our firmest tension) 4 rows of hand side stitching for edge-to-edge support Turn with the seasons Fillings Revolution pocket springs MD plus spring system Cashmere Hempure fibres Horsehair Wool blend Cotton blend Silk Mohair wool & 100% Egyptian cotton surface fillings Extra deep fitted bed sheets are recommended for this mattress