Alternative to bathroom carpet?

[ApplestheHare]

Our bathroom has a carpet that the previous owners fitted and it's disgusting. It's a very old house so our floor is not level enough for lino or anything like laminate or Karndean. Any ideas as to what we could replace the carpet with? I'm tempted to take it out and varnish (?) the floorboards but I'm not sure that would work either?

You can board over the floor to make a flat surface for lino if you want to.

BackforGood that was the original plan but the floor is so sloping that there's about 6 inches difference between one side of the room and the other. Plus, other than glueing the boards down, I can't think of a way you'd attach them without the screws being visible in the kitchen below The floorboards are about 3cm thick across old beams. I'm actually back to wondering about whether steam cleaning the carpet would be a decent short-term measure?!

that was the original plan but the floor is so sloping that there's about 6 inches difference between one side of the room and the other

Blimey! that's not a slope, that's a hill!

Add in a step at some point?

If you have that big of a slope I'd look at splitting the level like thereareflowersinmygarden suggested.
Only because if you have flooring that's not able to grip, and you're walking on a slope that big, you'll slip on your arse at some point.
We went to a b&b with that kind of slope, and I nearly broke my bloody neck on the laminate walking out of the door from the shower.

That slope is not acceptable. Something is wrong and needs to be corrected. Sort that out before you do anything else. I agree. - it’s not safe!

It's quite a long room so the slope has never been an issue but I hadn't thought about how slippery it could be with floorboards or similar. Maybe some grippy mats would help. There's nothing wrong with the house, it's just 350 years old so it's got a few 'features' for want of a better word.