Bed wetter - What can I do???

I have female neutered Siamese who is roughly 1.5 years old.

Before her operation, she was regularly wetting my (not hers) bed. That stopped after the operation. In the last few months she has started wetting the bed again. She does this daily (when she can) and I'm regularly running out of blankets. My favorite quilt/doona is so covered in stains it looks like a bad case of the chicken pox.

I've caught her at least twice. She jumps on the bed and cuts loose in a matter of seconds. I've woken up with a wet bed when she's wet it while I was sleeping.

Now I keep her (and her innocent brother) in the kitchen and lounge only.

Went for a trip to the vet Sunday and after a careful examination, he said the cat was fine and the problem is behavioral. So my question is how can i change this little bed wetter's behavior so she stops wetting my bed???

All three of us are really desperate and need help with this.

If there are stains on the quilt she can probably still smell it and will keep going there. You need to clean where she goes with specific cat wee cleaner and wash the bedding with an enzyme removing soap (Bio-Zet or other "Oxy" cleaners)

Thank you for your reply missymotus.

If I bought a new blanket/quilt with no scent of bed wetting, would that be safe or would she still use it as her urinal?