I bought this sleeping pad on amazon for $38, and I NEVER used it or even unpacked it since my travel plans changed and the return date expired.

R value is 4.3, see here https://www.amazon.com/TRIPHUNTER-GEARS-Inflating-Backpacking-Traveling/dp/B08P65M66R

I reduce slightly the price just to make it worthy for you to buy it from me and not from amazon, I do not want it since I am moving and want to reduce number of items I take with me.