Lasted under a week
I got this bed for the car to replace an old bed that was still intact but just fraying a little. I thought the new bed would fit the bill, being easy to keep clean. My dog only chews on very rare occasions - but she seemed to have taken a dislike to this new bed (possibly because of its cold, vinyl-type, covering) which because the covering is extremely thin and not at all durable, she chewed through within a matter of a few days.
I've gone back to the old bed - comfy, hard-wearing and washable - until I can find a decent quality new bed to replace it.
If your dog is prone to chew, don't buy this bed - it wouldn't survive the first day!