Does anyone know where to find or what shops do plastic bed covers?

Question:Because we have just brought a new bed and for my boyfriend wants to keep it new apparently, so does anyone know any shops that will do them. Oh and sofa coverings aswell?

English replies only please cause i can't travel to america for one lol :)

Answers:
Just about any department store carries them both. I bought a plastic matress cover for my mom's bed at a KMart and a sofa cover at Bed, Bath and Beyond but KMart also had them. They make protective cloth covers for mattresses which you can buy at a mattress store (probably where you got yours). Plastic can be pretty noisy to sleep on.