To keep the purchased bed cushions' colours intact, you must protect them from direct sunlight and excessive moisture. The unpleasant smell of old pillows is most often caused by hidden mildew triggered by unchecked humidity. At the same time, UV rays can bleach the pillows' patterns over the years. A good idea would be to use protective covers for your cushions, clean them professionally at least once a year, and store them in a dry and cool place when you are away from home for a long time.