[PiggieMom]

Did you wash the fleece before you put it in the cage? Many times fleece needs to be washed several times to 'prep' it so it wicks properly. Most people wash and dry it three times before use. Honestly, however, your main problem is that you have nothing absorbent under the fleece. Newspaper isn't going to work at all. If you are short on cash check out Goodwill or Salvation army. Many times you can get large cotton towels there for a dollar.

As far as floor time: guinea pigs are prey animals so therefore they are naturally afraid of wide open spaces. The best way to encourage exploration is to give them a lot of hidey places to explore through. I use bent grids covered in fleece for tunnels, but regular cardboard boxes with several holes cut out. Also, several piles of hay and veggies throughout the space will give them motivation to explore.