$40 shipped in the lower 48.
Super light, and packs up super small.
BUT, it didn't work that well for me because I'm mostly a side sleeper. If you sleep well on your back this thing is awesome. Or, if you're a racer and just need a little extra padding it would be great. Definitely the smallest and lightest I've found and I can fill it in three breaths. It seems pretty durable as well. I only used it twice; I still have the original box it came in.
If interested please email me (not PM, I don't check my PMs very often): payton.macdonald [at] gmail.com
Here's a link about it:
https://www.rei.com/product/833850/klymit-inertia-x-frame-sleeping-pad
