Sleep paralysis is a very common sleep disorder. Out of the entire population, about 7.6% of people will have at least one encounter in there lifetime. The two most common groups of people who experience sleep paralysis are students, and psychiatric patients (Sharpless 2011.). Sharpless wrote that in a study, about 28% of students and 32% of psychiatric patients have occurred at least one encounter of sleep paralysis. With the patients, their disorder could cause them to not get a good night’s rest, which could cause disruptancies in their REM cycle, and cause sleep paralysis. With students, there's a lot of all-nighters for studying, and not a lot of sleep with all the work, and his causes the REM cycle for them to get all messed up, exposing
