Thanks
@eileen for confirming this. I don't think Cookie would eat much of it (fingers crossed!). She's running around and eating pellets and hay now.
@sport_billy Cookie once ate threads of the mat under the coffee table! At first I was wondering why the threads was like it's been cut at the edges. Then we saw Cookie doing it and hubby said "you know who the culprit is now". She even tried eating the fleece and towels!
We also have a ratan sofa where the other run is at the other side of the living room. They like hiding under it so we decided years ago to just put newspaper with shavings there so they won't pee and poo on the carpet. When we got Cookie last year I noticed the sides of the legs (it's like a criss cross of ratan around the side legs) ruined and loads of chunk has been eaten/bitten plenty of times. And yup, the culprit is Cookie again!