i have rls and i'm not sure, but it may be the result of the anti-depressants that i'm currently taking. i HATE when it kicks in (no pun intended) in the car, but i actually put a bar of soap under my sheets, and i don't experience the feeling anymore when i'm in bed.
my mom told me about the 'remedy' - any brand of soap, still wrapped up, placed under your fitted sheet down near your toes. it works - for me, at least!
there was a thread on here somewhere, and i believe it was started by jaimelynn...it may have been deleted ...... i'll go search for it.
UPDATE: must have been deleted...sorry!