I spent this past weekend camped out in UL luxury. I brought 2 sleeping pads! How could it possibly have been UL? They were a GG Nightlight Torso and GG 1/8" Thinlight.
So maybe it wasn't a luxurious night of sleep, but by doubling up the Thinlight and laying the Nightlight on top of it I had around 1" of padding between me and the ground. For being camped out in a field of lumpy grass, I slept pretty well and could really tell a difference in warmth between my torso and my feet.
I just got the Thinlight in before a trail work outing on the OT so I decided to go ahead and try the combination out. I think I'm going to like it a lot. It seems quite versatile for being under 6 oz.
Adam

