This stuff is probably similar, if not identical, to the Tempur-Pedic
products.
Costco was selling a variation of it last year.  We bought one (the
"mattress topper").
Our experience was:
1) It works as advertised, i.e., it is very comfortable, support-wise.  I
don't have an opinion on help for those with specific back problems,
however.
2) It sleeps "hot", by which I mean it absorbs and reflects back your body
heat. Perhaps that's where the "Tempur" comes from.  So much so, that we
were self-broiling.  That is the main reason we returned it.
3) It's heavy, and dense.  Although not a problem for home applications, do
you really want to lug around at least 30+ extra lbs. in your Westy?
Density=not easy to store.  If you try to fold it up, it takes some volume!

YMMV,

ChrisR in SF

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com]On Behalf
Of Chuck Reisinger
Sent: Saturday, November 06, 2004 2:25 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Memory Foam

http://www.myrest.com/ItemMatrix.asp?GroupCode=MEM1%2D6%2E0%2DTOP&MatrixType
=2

Take a look at this....are you sleeping on Memory
Foam....Thanks....Chuck.....