narcolepsy
"Diagnosed with narcolepsy and had frequent daily cataplexy. Nothing else worked, prior to getting diagnosed, hours and hours of sleep mixed with coffee, energy drinks and abuse of workout stimulants. After adjusting to the jitters and slight nausea, I've never felt better. Every now and then I will need a small nap, but I am sleeping deeper and sleep walking much less. I went from several cataplexy a day to only three in the last month. Those three only happened because I hadn't gotten enough sleep that night. This drug works the best for me when I get more than 6 hours of sleep, ideally 7 or 8 hours though. I am very happy overall, but it is ridiculously expensive if you aren't on an insurance plan, like me (just switched jobs)."