Are you sure it's fleece, I've never really known for piggy nails to get caught up in fleece to be honest.
I suspect the wood pine bedding you are talking about won't for good for you your pig's feet long term.
There are a number of options for bedding, I assume you are in the United Stages and presumably quite warm so wouldn't want to use vetbed as an option.
Perhaps dog puppy pads with hay?
Check out the thread for members reviews on bedding within this section to get an idea what would be better.
I use a wood substitute called Auboise which is an equine (horse) bedding, which is absorbent. Not sure what you have in the States.
Just a tip - it took me a bit longer to read your thread because of the mobile text speech you are using, for forums you may be better to type in full rather than hoping everyone can read the shortened non english words. No offence intended.
Cheers.