Welcome to our forum.
One of the secrets of the spa industry:Pillows head rests in warm steamy chemical environment deteriorate. They are consumable items, generally not covered by warranties.
About 7 years ago my parents bought a spa and the headrests disolved after about a year or so. My theory on this was they were not told to shock with the cover off and always did with it on. Not sure if I'm right but the Cover was going bad too so I'm thinking maybe.
Spa tech, do you think the spa blanket offers some protection from the ozone and chemical off gassing?
Padded headrests aren't supposed to last, and they don't. If they did last, they wouldn't be excluded from the warranty.
One of the secrets of the spa industry: Pillows head rests in warm steamy chemical environment deteriorate.