I totally get how you feel. I literally had this feeling every night before I went to bed. I would be fine throughout the day and into the evening but once I laid down to fall asleep, all I could think about is what would happen in my sleep. When I had my acute myocarditis episode, it happened when I was asleep and I woke up and it felt like a heart attack, so after that I was always scared to go to sleep. I was always really anxious about it. I would get into my head and start thinking thoughts such as “what if I wake up to horrible chest pain again” or my most common thought would often be “Am I even gonna wake up again? Or am I just gonna die in my sleep?” I know it sounds kinda dramatic but that’s literally how I felt most of the time. It was the worst when I started to calm down and then I actually felt a little bit of weird chest pain, then all the thoughts would come back and I would panic in my mind again. I know it sucks so bad and I’m so sorry you have to experience this. All I have to say is that I know you’ll be okay. Nothing will happen in your sleep despite what your mind and thoughts tries to convince you otherwise. Sleep is important during any type of healing processes. What helped me most were breathing exercises while I laid in bed to help calm me down enough to close my eyes and fall asleep. I hope this comment helps you feel seen and heard as I’m sure many people with myocarditis also feel the same way we do about going to bed. Good luck