Ten years ago I used to use Polyester-based insulation. It is itch free and no fiberglass dust to inhale. It does not retain moisture and does not mold. However, SafeTouch was discontinued by Dow in spring 2011 due to poor sales. It was a big hit with DIYers, but most installations are done by those who do not make material buying decisions.
I still find it, but I have to get it as pillows from Walmart. Here is the last job I did with it:
https://www.rv.net/forum/index.cfm/fuseaction/thread/tid/29684694/gotomsg/29685117.cfm#29685117
