Cockpit Cushion Problem

[david mills]

I have original white closed foam cockpit cushions with gray piping. They have held up well for the 13 years of use. This past summer they were stored inside the boat here in southwest Florida and now appear to have a noticeable yellowing on their top side. They were not exposed to the sun while stored. I have not found any cleaner that works to return them to their initial white color. Has anyone else encountered this problem, and anyone have a suggestion for cleaning them,or if that is even possible? Thanks.

Dave Mills
Island Time II
Hull 56