narcolepsy
"This medicine is a life-changer.  Has reduced my excessive daytime sleepiness by about 80%. I rarely have to take any daytime narcolepsy medicines.  Has also stopped the hypnopompic hallucinations almost completely.  I feel like I got my life back.  I went from considering applying for disability to working full time with no accommodations.  This medicine gave me my life back!  Just be aware that it can take a good 6 months to adjust to it, find your therapeutic dose, and work off your sleep debt (from lack of deep sleep).  I ended up being prescribed an anti-nausea medicine while I was titrating my dose in order to overcome the nausea at first.  But now I can take it just fine. It's tough to adjust to but so worth it in the long run!"