best mattress covers for futon

[thegreenmile]

what would work best to cover a futon bed?i have cats and last fabric sofa they peed on it and ruined it?x

I bought this one as a replacement for one I bought two years ago good price and comfy to lie on.

I bought a lovely padded, waterproof one from The Futon Company but a normal bed-shaped one would have been fine. I like the terry waterproof ones, they are quieter than the cheaper ones.