I purchased two different memory foam pillows before this one. My mother has the thinner version and its amazing but she has to use another pillow underneath. I ordered the thicker one because I only want to use one pillow. I have the best nights sleep now and no more neck pain. It maintains its shape but is still soft unlike the memory foam pillows which gave me a stiff neck. I have previously only used feather pillows but would never go Back Now.