I didn’t have Carpal tunnel, but many other repetitive injuries to hand, elbow, arm, shoulders..
I used the soft wrist wraps similar to this style -
http://www.amazon.com/Adjustable-Pro...KB39KAY37B2K4V
The warmth & adjustable gentle pressure/supposrt was what I needed..

At one point I had thumb splints, elbow bands, wrist wraps all in use..
Luckily that passed after some good PT and time ...and off work..

Are your hand/arm issues PN related or a separate RSI thing?

I might have already mentioned our TOS forum to some of you with these arm/hand, elbow issues... ( RSI tips and such too)
So I won't repeat myself.. but that forum does have a lot of info on those sort of things.