I agree with John.....peroxide would probably take any oils out and make it even stiffer, and hair conditioner sure wouldn't hurt.

I do remember that they used to use horse hair in furniture cushions back in the pre-50's furniture. Can't remember if it was part of the cushioning or what. I do remember at my Grandmother's house that it would stick you through a pair of jeans, etc..

If you find something that helps I'd be interested just to know.

Regards,

Howard