Handmade in Yorkshire, featuring three rows of hand side stitching and 8000 springs in the king size version, the Yorkshire 8000 mattress is the culmination of generations of bed making experience. Combining unrivalled craftsmanship, cutting-edge technological advancements and only the very best natural materials, this range offers a wonderful environment for sleep. The mattresses' unique blend of hand-teased fillings includes Yorkshire wool; Fleece wool; Egyptian cotton; linen; cotton; wool; and hemp. This sumptuous mix of materials provides a range of beneficial properties - softness; resilience; breathability; and natural springiness - which help support your body and regulate its temperature throughout the night. The zip link offers you the flexibility to have one big mattress or two independent mattresses depending on your needs. And as each mattress is individually made, you will eliminate any roll together. Several layers of innovative pocket springs give enhanced, ultra responsive support to relieve pressure and aid comfort for tired limbs. The mattress' core boasts a central foundation of Revolution® Air pocket springs. These move up, down and side-to-side, to pivot in response to your movements, mapping the exact shape of your body as you sleep. Working with a layer of Airtanium 4K pocket springs at either side this unit also allows for enhanced air flow throughout the mattress. This ensures the fillings remain fresh and hygienic, as well as aiding heat regulation so you can enjoy a cool and comfortable night's sleep. Alternative mattress tensions, including Dual tension options, are available in store. Please call your nearest John Lewis to check before you visit. Please note: We recommend you visit one of our shops and try out your mattress choice before ordering online. Please note: not all our ranges are on display in our shops. For more information, please speak to a furniture Partner in store, or call 03452 661805 and we can tell you where the range you'd like to view is on display. 0% APR Representative: this product is eligible for Interest Free Credit, available when you spend £1000 or more on selected home products. Call 03456 065019, or visit our shops. Terms and conditions apply: find out more Extend the life of your new mattress with a durable and breathable mattress protector. .