When Isabella was little, she had a dog bed. It didn't take her very long before she started trying to pick apart the seams with her teeth. Needless to say, the bed didn't last very long after that.
Jake was a chewer and de-stuffer from the day we brought him home. Dog beds (and squeaky or stuffed toys) never lasted long around him.
Now that Isabella is 4 (?!) and Jake will be in March, they've finally hit an age where they can appreciate a dog bed. Finally.