I have recently been wondering the same things about these kinds of dog beds, Mona! My new dog, Dayna, has now 'disemboweled' three soft dog beds. Previous owner told me she 'ate' her beds, so they had only carpet remnants/crate pads piled for her to sleep on. She really LIKES soft beds and was fine on the several I had around for quite a while, then one night she bit/pawed one open and I got up to find the fiberfill spread all around...and she has done it twice since, always when I am asleep...she even ruined a large round cushy, expensive, Kirkland(Costso) bed that came to my daughter w/ her rescue pug, and which ALL the dogs loved, so I guess I'll be needing to replace it.
I found an old all-cotton 6' x 6' area rug, expensive brand ,that my mother, who was an interior decorator, once had....folded it into fourths, and she is sleeping on it at night, and on the dog beds during the day(while I am right there; I put them away at night).
My major concern was whether she would even USE one of those 'cot' type beds, and sounds like I was right to wonder...so maybe I'll just stick w/ the folded rug! NO worries about damp ground here, in DRY, DROUGHTSTRICKEN NM!! Will be interested in any others' experiences, too, though.
Margo