I’ve got a couple of hik9 and the rest Amazon. The hik9 are a bit more robust but they are all the same age and none broken yet.
Mine have a mattress and a quilt on top
Amazon basics raised dog bed here, been outside in all weathers for years and still in excellent nick. The hound loves it (though appreciates some extra padding on it in spring and autumn). Ours is too big for indoors, we'd constantly be bashing ankles in it!
Another with a couple of HiK9 beds, they have lovely clip on toppers that are easy wash and don’t fall off or get scrabbled about. I do have a selection of different types of beds though in different rooms. They seem to like a change about. My dogs spoilt? …. No never!