My toddler is starting to bite off those ABC foam play mats -.- im kind of lost now as all playmats look like they are foam and easily tearable/edible lol

Ive literally put the foam playmats underneath a carpet now and he plays on the carpet.. sometimes when he falls though he cries so im not sure if it hurts or its just the scare of falling, since the foam playmats are underneath the carpet anyway. Otherwise this set up works fine

Does anyone know a good play mat offf amazon that doesnt tear easily and a toddler wont eat LOL?