Occasionally I will be kept awake with a restless leg. It’s mild thank goodness certainly nothing like some poor people suffer and I read a fantastic description that says it feels like you have fizzy water in your veins. Spot on. It keeps me awake. My remedy, which always works for me is to get out of bed and do some strenuous hopping on the offending leg. Just in case anyone feels like trying it. Not for everyone obviously.