Sleeping without a pad - I'm getting cold just thinking about it.

The closed cell pads like the Ridge Rest are toasty warm and significantly lighter than the inflatable ones. If your only complaint sleeping on the ground is the cold, not the hardness of it, save your money and save weight and buy a closed cell pad! I've been using a therm-a-rest for many years but I'm considering going back to a closed cell matte that I have for the weight savings. I'm sick of the excessive weight of the therm-a-rest and I sleep very soundly when camping.