One of the very best most luxurious zip & link mattresses. Our Wordsworth has even more springs for a seemingly impossible level of comfort & support & the added luxury of Yorkshire wool creates a sumptuously soft layer. The revolutionary HD plus spring system means our Wordsworth 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 to offer the finest comfort & support that really creates a divine experience. A zip cover is included for additional comfort Available in tensions 3 (soft) to 9 (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.