If you’ve ever woken up in a panic because of the dream you were having, you aren’t alone; nightmares are something that affect everyone and they’re rarely ever pleasant. However, did you know that they’re sometimes caused by oxygen-deprivation? This means that things like obstructive sleep apnea can directly influence how you dream! Here’s what you need to know about sleep apnea and how it can cause you to have nightmares, along with a few tips for catching some peaceful sleep.