Having previously bought a medium-sized donut bed from this seller, I simply wanted one a little larger for my Beagle to have more room. When this large bed arrived it was badly squashed in packaging and when unfolded was very limp, the raised sides being very slack & flatish & it has never changed. However, since my dog had got into it, to try it out, I decided I could not return it. So disappointing, after the medium donut bed was ideal! All packages arrived fairly quickly.