You mentioned on an earlier post that your current cage is on the small side and you are considering making a larger one. If your cage is small, that could explain why you are having difficulty with the fleece -- smaller cages tend to get smellier more quickly regardless of what type of bedding is used.
I use fleece for my hedgehog and it is super easy. It takes a couple weeks (or more) before I can begin to smell anything. Of course I still clean the wheel every day and I have a litter tray under the wheel.
But the fleece itself couldn't be easier for me...just something to consider.
here with my Mecki-- born 2/12/19