Aaron,
You probably already know this, however, I thought I would share it here just in case it might help you or any others reading this thread. I understand sleeping comfort and pads are "very personal", and I have found that my site selection plays a huge role in how well any foam pad preforms for me. I think inflatables are much more forgiving in this area and I didn't really employ this thinking when I first started using foam pads. I just threw my down in the spots where my group was setting up camp.
I have gone from a thick, full length inflatable pad down to the GG Nightlite over the last several years which included 16 straight nights last year on the Nightlite and I was more comfortable this last year than I ever was using the inflatable pad. When I add in the fact the Nightlite also helps my pack carry better than a GG SitLite or even a full length 1/8" GG pad, it cannot ever get a hole, it's 1/4 the weight, and setting up and taking down is soooo much easier, I currently wouldn't trade that pad for any other pad on the market even if someone else carried it for me.
Another thing I noticed is that it took "time" for me to transition to a 30×19 foam pad. Two years ago, I took the 1/8" pad and a short Thermarest and doubled over the 1/8" to make a 1/4". If you do take a full length foam pad of any thickness, you do have the option of folding it over to double it if needed or leave it full length.
As far as freezing temps go…..I do not have any issues with the NightLite as while the areas I hike in have night time lows near freezing, the ground is never frozen. If it was, I'm sure my current system would not work.
I understand that most people don't sleep better on tiny foam than full length air so I consider myself very lucky, This said, I also think "selecting a site based on ones pad" is often overlooked and I feel this has made a HUGE difference for me. I heard this years ago, yet really didn't incorporate it to the degree I do now.