Cat wee-ing on the bed

[LakeSunset]

We have an 8 month old female kitten who has been fully toilet trained since we had her at 10 weeks old however in the last 2 weeks she has started wee-ing on our bed in the middle of the night. This has happened 3 times now and no idea why it's only just started or how to stop her. We have a litter tray downstairs that she does use so it can't be that she has no access to it.

Any ideas greatly appreciated as it's a nightmare having to wash the duvet/sheets each time and also get the smell out of the mattress

Put another tray upstairs? That would be the first thing to try I think.
Is it a full wee? Cystitis is always a possibility.

It's a full wee and very strong smelling.

Hadn't thought of cystitis as a possibility so I'll check with the vets to see if they can check for it.

Another tray upstairs and is the duvet feather?

If it's a full wee and she isn't displaying any other odd sort of behaviour around the litter tray then it probably isn't cystitis.

I have an issue with our cat peeing in her own bed. Also, once cats go somewhere they will go back to the same place to wee, so can you shut your bedroom door??

It's not a feather duvet and no other odd behaviour that we've noticed except this, will try a second litter tray upstairs initially to see if that helps

I have a pissy knickers puss. She can't resist a feather duvet or a carrier bag