Over the coarse of 40 years of camping I've had 3 different sleeping pads.  I started with a Therm-a-Rest 2" inflatable pad.  I used that for years.  Then I picked up a Therm-a-Rest  Dreamtime, a 2" inch inflatable air pad with 1" foam pad on top encased in a zippered sleeve.  Lately I picked up an Amok Draumer 3.0 it requires a special type of air mattress with baffles run vertically.  So I picked up an Exped 9 LW.  These see great because you don't use an under quilt on the Amok, these air mattresses have over 700 fill down.  I like it so much I picked up one of their down filled air pillows as well.  I took from the Dreamtime and put a half inch foam pad on it.  My wife made for me a pillow case, so everything fits without falling out.  I tried sleeping in the Clark Jungle Hammock without a pad, but there was just too much shoulder pinch to be comfortable, so the Dreamtime worked well to alleviate the pinch.  So I guess a pad has always been apart of my camp life.
Bibsoutdoors