Is the hutch indoors or out? How large is the hutch? Fleece tends not to work too well in housing smaller than 2x4ft.
Yeah it's funny. I was about to give up on the fleece. It sometimes started to smell on the second day! Then I changed to the bigger "cage" and now I only change fleece and towels once a week. I really didn't believe all the people who said a big cage is less work but it is!
Fudge and Rainbow, if your piggies are outside, maybe they would like some vetbed to snuggle in too? It seems to retain piggy body heat better than fleece.