
I agree vet fleece bedding. Few chew it, though my recently deceased 15 year old was the first to chew hers, but it still stays useable. it is very warm.
You can get non slip type, but I find this is not as lasting as the woven backed which lasts forever, though eventually felts up.
It doesn't harbour smells like blankets, washes and dries easily.
My chewers just get vetbed on top of rubber backed mats.