My dog loves this bed. I got the 52" one for my 80 lb lab mix. I probably could have gotten 1 size down, it's huge. The material is nice and I haven't tried to wash it yet but in that 52" size, there are 2 zippers to take off the cover so I'm guessing it shouldn't be too difficult.
80 lb lab and golden retriever puppy fit very easily and they love it!