if you go to Jo Ann fabrics fleece is usually $12 or so a yard, so yeah, thats a good price. I just can't stand Walmart, or their itiful fabric selection, but for that price it's totally worth it.
I use one towel under my fleece. Right now I only have on pig so that's all I need but when get my second piggie (I got my second job so right after the new year I'll be getting a buddy!!
) I will use one or two more towels. If that doesn't work I'll try more layers of different materials.
Good luck with your intros when quarantine is over! And good luck with the fleece!