Having a long neck, I have to constantly calibrate my neck when I'm sitting. This is often a headache to find the right position. With this cushion, I saw! Initially, I thought it was some effect "brace", but in use, this bag is perfect! It has a good hold of the head (back and sides), remains "firm" without causing pain due to prolonged use, especially on the nerves like Arnold neuralgia and no need to type continuously cushions to swell. The fabric is very soft, is not a dust nest (I have a white cat, and there are no hair is left hanging), the cover is closed by a zipper, providing a good hygiene. In short, this is (almost) perfect! The only little that can be "negative" is that it was being flattened or deflated to put it in a suitcase ...