These are great quality. Haven't washed them so I can't speak to that. The king size ones are about 14" high and sink to about 8-9" when you rest your head on them. They are not firm. There was a very slight odor when new but a quick wipe with a fragrant cleaner neutralized that, so they didn't need washing. I am happy with these as side pillows or back pillows but I prefer 6" really firm ones to sleep on.