I have heard this. Just need a few more details:

So, the ENTIRE pillow case should be moist and not dripping, yes?

Will she suffocate?

Will her breathing be normal?

Will it hurt her?

Will she attempt to murder me and my entire family once she is let out?

That scares me SO MUCH, LoL... But, if in the vast majority of opinions it is better than the bath, I can suck it up and do it.