Orthopedic mattress double the spinery one

A very firm orthopedic mattress for sale .I bought it following a back injury 3 years ago it a spinery one you can Google them at the minute they are 1,595 euro this one alway had a mattress topper and protector on it as well as the usual bed linen. It has a removal mattress cover that can be washed .it is as good as new . All reasonable offer will be considered. Unfortunately I have no room to store it .