I have gone through 4 pillows in just a few months before buying this one. Right from the first night, I slept all the way through the night and I am no longer tossing and turning or flipping my pillow a million times during the night. I actually feel well rested and refreshed when I wake up. This pillow has been a life saver for me. I'm 5'2" and 180lbs and I ordered the white medium size pillow with the regular firm support. It fits my neck and head perfectly. I've only had it for a few weeks so I can't speak to how long it will last, but so far it has not changed shape at all. Even if I only got 6 months of use out of it, the price makes it so affordable and I would just purchase a new one. My good nights sleep is worth every penny.