I was recently talking to someone who suffered severely from PLMD. I was diagnosed with this after a sleep study 7/8 years ago, but it never bothered me. The ex complained often. As I now sleep alone (kind of) I was wondering if I still had it.
Then I realised 'something' was moving around between my feet. My 8 week old kitten, Billy (short for Silly Billy) sleeps between my feet, every night, under the covers.
So .... doubt he'd stay there if PLMD was still active. Have no idea why. Maybe the Sifrol is working it's magic in controlling the PLMD as well as my RLS.