It's certainly a habit you can train them out of.If your dog doesn't smoke in bed, then the fire retardant material probably isn't all that important.
Thanks for your advice !!!!!! I have a German shepard puppyI just read a book by Ted Kerasote, 'Pukka's Promise, the quest for longer lived dogs' he did a lot of research on a number of health issues, he cautioned people to not buy fire retardant material that comes in most dog beds as the fire retardant is toxic. Do you have a puppy or adult dog?