After lot of thought I have decided to use Polyfill material - the stuff found in pillows and then a layer of foam. All my research points to glass wool being safe, but being enclosed by them in a tiny 12.5x10 room doesn't inspire confidence in me personally - maybe ok for larger rooms.
Even the ceiling I am going in for the wood particle based Anutone Matt Ebony instead of Subtex Ebony or Rockfon tiles which are glass/stone wool based.
Even the ceiling I am going in for the wood particle based Anutone Matt Ebony instead of Subtex Ebony or Rockfon tiles which are glass/stone wool based.