I've seen a neuropsychiatrist re: the results of my sleep study, which showed a complete lack of deep sleep/REM sleep, as well as a lot of limb movements/muscle twitching, mainly on my left side. I've experienced the muscle twitching while awake, mainly since the insomnia got really back in late July. Prior to all this, in mid-May to early June, I had a mild bout of Guillain Barre Syndrome, which included a lot of muscle twitching on my left side. The neuropsych. has given me selegiline to deal with the muscle twitching while awake, which he feels will also help the twitching while I sleep. I'm not sure how this works exactly, and I've read selegiline can actually cause insomnia if taken late in the day, but this doctor really knows his stuff. I've read up quite a bit on it, and it seems pretty safe. This article supports what my doctor is saying: http://onlinelibrary.wiley.com/doi/10.1002/mds.10082/abstract Dosage is 5 mg, twice per day. I've been on it almost a week now. I feel much better during the days, but I'm not sure if my sleep has improved. If anyone has any experience with this drug, any input would be much appreciated.