Can a panic attack happen in your sleep?

Panic Attacks: Yes. Many people who are living with stress and other unresolved mental health issues can wake up feeling chest tightness and anxiety and even with panic. If you have not dealt with the underlying mental health issues this may be your body's way of pointing out you have work to do. Getting good advice along with other natural techniques to relax is wise.

Yes, I see this: Often with combat related post traumatic stress disorder.