nope, won't buy polyester sheets or clothes, EVER and you all should stop buying it too. Polyester is a synthetic fiber made from petroleum products. It is polluting our atmosphere with fibers that settle and taint our water AND end up in the garbage patch in the ocean. Polyester is not biodegradable and causes cancer, do you really want to sleep on that? Factories making the polyester use tons of energy and pollute the environment, as well (probably made in china).