Cat wee on mattress, help!

[SpanglyGiraffe]

My duvet is at the dry cleaners, but I'm not sure what to do with the mattress.

Has anyone got any solutions, please? I really cannot afford to buy a new one!

Do you know anyone with a carpet shampooer or a wet and dry vac?

otherwise just scrub and turn the mattress over. bicarbonate of soda is supposed to be good for neutralising it I think
Don't use bleach that makes them wee even more, cats love the smell of bleach!