I was prescribed Zopiclone by my GP in case I had trouble getting to sleep at nights. I took a half pill last night (tastes foul by the way), and was wincing around from about 1 to 3-4 am. Instead of sending me off to sleep, it kept me awake.
According to a leaflet circulated by Guy’s and St Thomas’ NHS Foundation Trust, "The use of Zopiclone for RLS is off-label which means that although the manufacturer of the medicine has not specified it can be used in this way, there is evidence that it works to treat this particular condition."
I'm not sure whether Zopiclone is the same as Imovan, but they gave me one of the latter while in hospital to help me sleep, and that too had the opposite effect.