Traverse Core Standard Sleeping Pad

I can’t find much about this item online. Does anyone know where I could find specs such as the R value?

Amazon says r3
https://www.amazon.com/JR-Gear-Traverse-Rectangular-Inflatable/dp/B00FGPLG02/ref=pd_sbs_200_2?ie=UTF8&psc=1&refRID=DQBVF3J8M3W3NBH66MVQ