Editing Sleep paralysis (section)

===Differential diagnosis===

Similar conditions include:<ref name="Sharp2015">{{cite book |last1=Sharpless |first1=Brian A. |last2=Doghramji |first2=Karl |title=Sleep Paralysis: Historical, Psychological, and Medical Perspectives |date=2015 |publisher=Oxford University Press |isbn=978-0-19-931380-8 |pages=170–181 |url=https://books.google.com/books?id=DNymCAAAQBAJ&pg=PP1 |language=en}}</ref>
* [[Exploding head syndrome]] (EHS) potentially frightening parasomnia, the hallucinations are usually briefer and always loud or jarring. There is no paralysis during EHS.
* [[Nightmare disorder]] (ND); also REM-based parasomnia.
* [[Sleep terrors]] (STs) are potentially frightening parasomnia, but are not REM based and there is a lack of awareness to surroundings, characteristic screams during STs.
* [[Noctural panic attacks]] (NPAs) involve fear and acute distress but lack paralysis and dream imagery.
* [[Post-traumatic stress disorder]] (PTSD) often includes scary imagery and anxiety but not limited to sleep-wake transitions.