4. PTSD
If you suffer from post-traumatic stress disorder (PTSD), you may be prone to attacks of sleep paralysis. There are several contributing factors so it is a little complex, but with PTSD comes anxiety, which can cause insomnia.
In addition, PTSD makes someone experience persistent nightmares that are connected with the sleep paralysis.
In addition, another contributing factor is that a significant number of people with PTSD use alcohol regularly, and alcohol can disrupt breathing while you are asleep (known as sleep apnea). This disrupted breathing may affect your sleep cycle and contribute to episodes of sleep paralysis.