My GSP used to chew on blankets, but never was really bad. Just the torn edges once in awhile. My wife went to jo-ann fabrics and got some waterproof camo material that feels like the material they make vehicle seat covers out of, and made a pad for the crate. She stuffed it with some polyfil and so far he hasn't bothered it, and it makes for a softer bed than just the blanket.