double mattress (Thurlton NR14)

Free double mattress, still in a usable condition, was in the house when we got the place but we've brought our own mattress. It does have a bit of stain on the underside which I did clean with antibacterial cleaner but the stain is still there. Would do someone a turn as there is plenty of life still in it, with a mattress cover would be fine as is still a comfy mattress. COLLECTION ONLY would like gone ASAP.