Single mattress (Dawlish EX7)

This is an excellent quality made single mattress which was used on a top bunk for minimal guest use and no longer required. Unfortunately it's been lay on pine slats which have rubbed off onto the underneath of the mattress so has discoloured, but the mattress itself is clean and was expensive. If it could fit under my bed as a spare I'd keep it because of it's quality, but the depth is too deep. So anyone in need of a good well made mattress please let me know asap. Thank you.