Why does my dog eat his bed? How can I stop this destructive chewing?

There are a couple of approaches you can take to stop Bruno from eating his bed. One, you can supply him with more chew type toys. This will allow him to take out his chewing instincts safely, as well as preventing boredom. You can train him to not chew his bed. Every time Bruno starts doing this, you can get his attention by making a loud noise, and then giving him a chew toy to chew on instead. Praise him when he stops chewing on the bed and starts chewing on the toy so that he learns it's good for him to chew on the toy. There are chew deterrents you can spray on his bed, which you can get from a pet store. Finally, give him plenty of exercise so that when it's time to lie down on his bed, he will simply want to sleep.