King size, pocket sprung mattress (Rishworth HX6)

On offer is a king size (200x150 cm) Silentnight mattress (see photo). It's just on the firm side of medium and we are replacing it because my (increasingly arthritic) wife has started to find it too firm. It's about 10 years old and but has only had about half that use as we spend about half our time on our canal boat. It has some signs of use (slight sagging) but should be OK for another few years. Its replacement is due on Monday, 13th January, so it must be collected before then. We will help to get it to a vehicle but can't deliver.