Another newbie question. I am looking for a good sleeping pad for backpacking. Years ago (1995) I bought a Thermarest self inflating pad. I have tried it, and it just wasn't thick enough for me to have good comfort. I ended up buying a much heavier air mattress that I use when I car camp. Not really an option when backpacking. My back is my limiting factor, and I also tend to sleep on my side. When I was younger I could sleep on the ground with no additional pad. Now much older (Not that old though) I want something else to provide comfort, hopefully without adding 10 pounds to my backpack.