Best non-inflatable pad?

A Ridgerest is lighter by an ounce, and has a better reputation for durability than the Z-rest.

Ridgerest by far. It is more durable and comfortable than a Z-lite, though a lot bulkier. Ridgerests generally come in under the advertised weight too, most 3/4 models are around 9oz and the full lengths are around 12.5-13 oz.

+1 on the Ridgerest. I remember taking a break on a rocky riverbank, throwing my Ridgerest down and thinking how an inflatable would have been shredded. They are a fat roll, especially the long ones. I bought a small Prolite for a low volume alternative– at 4x the cost of the Ridgerest and no lighter.

Another vote for the Ridgerest. My 2008 3/4 length weights in at 9 ounces. It is very comfortable for a foam pad and the current version with the reflective side is even better insulation. They are US made and a good value.

I have a GG torso pad which I like for minimal weight and bulk but it makes the Ridgerest feel totally plush in comparison.

The GG Nightlight is awesome in insulation vs weight but it's bulky. It's also grippy and this makes it trickier to pack inside with the cylinder method as the rest of the gear (even silnylon) doesn't slide well.