I've used ridge-rests for years now, and I can say that they are dependable, adequately comfortable and durable. It's just that they compress and lose what loft they have, decreasing the comfort significantly. You can feel a lot of the ground beneath you as well, which isn't so handy when your back isn't the greatest. They are light and durable, I have always stashed mine on the outside of my pack and it has yet to be torn up, but don't pack up to well. Rolling is the only method, and usually end up above knee height on end and about an 8" diameter.