Sounds like RLS to me but it also could be a delayed reaction to the anesthesia, didn't he have surgery not too long ago? Or was it happening before that? Either way, he needs to tell his doctor about it. It could even be nerves and if it's that, it's easily treated--.5mg Lorazapam 30 minutes before bedtime will fix him right up. That's what I used to take when my nerves made my skin feel buggy.