A quality, affordable sleeping pad - ALPS Mountaineering Lightweight Self-Inflating Sleeping Air Pad

I have only owned it for about 7 weeks, so I have not had a chance to use it much. However, I thus far am very impressed. It inflates quickly and easily, and you can top it off with a few quick breaths or a couple of seconds with an air pump for a firmer, more supportive mattress. It provides a firm, comfortable pad that definitely makes sleeping on a hard surface much easier. When you are done, it easily rolls up for packing and stowing. Please note, however: 1) while very comfortable, this pad is fairly thin - you will feel the ground when turning or sleeping on your side; and 2) it is not very compact, so it is best strapped to the bottom of your pack, rather than being stowed inside.