KING-size Mattress Protector Pad

White king-size protector. 600 thread count. We purchased this last year and then bought one of those life-style split beds, which is a different size so no longer can use this. It was the highest-end one I could find at the time - a lot of them don't last so I always buy the most expensive one I can, else they just slide off your mattress and are crap. This one is a very thick pad. Will be sending in its Original packaging as pictured. It has been washed but I failed to treat the “dust" stain on the side panel, which I think will come out.