9 or 10 years ago, I got some nice foam padding to use under my sleeping bag in shelters or for insulation in my hammock. I think it was called bevazote (a variety of evazote which is still around in different forms) - it was tough, light and reasonably comfortable and I could cut it to the ideal shape. It's no longer usable and I am looking for some new foam - something better than the standard blue stuff. Any suggestions? Any ideas?
Edit: This is the closest to what I used before (If I got it, I wonder what thickness would be best):
http://www.owfinc.com/Hardware/Shardware/Miscshardware.asp#FY20