Well lucky you, I guess those jolting dreams could count for nightmares that last exactly 2.8 seconds lol But I literally have not had a nightmare since I was about 9 or so, I'm 20 now so yeah, it's been a while :)
I can wake up from any dream I want at any point. I have this thing where I barely hit REM sleep so when I do, that's when I dream but it's so rare in the first half of my sleep cycle. Then towards the morning hours around 12 or 1 I start to wake up every half hour to an hour and then fall back asleep so I dream and then I continue it after I wake up. You're supposed to be paralyzed while you sleep since your brain is literally disconnected from your body so that's my clue that I don't sleep well. I toss and turn like there's no tomorrow.
No, I don't mean waking up and being paralyzed which is something else entirely (it's when your brain wants to connect itself back to the body but your body wakes up before it can compute it basically which then usually leads to freaking out because you can't move)
What I was talking about is during a REM cycle when you should be properly asleep your body becomes paralyzed. People who toss and turn, like myself, don't hit a very deep REM sleep which is what we need. And then on the other side people who go into a REM sleep and hit a deep REM like your body SHOULD be doing, sleep heavily.
But it doesn't matter what kind of sleep you get, you are going to hit REM and once you do, your brain is disconnected, rendering your paralyzed until your brain reconnects again. Does that make more sense?
Sorry I might know too much for my own good haha. My family has a long history of Sleep Apnea, I probably have it as well but having this condition we know more about dreaming than most people ^^
I know! Compared to what my teacher told me on how to take care of my betta, I did a lot better! The funny thing is that durring a school project I don't learn squat evern if I do a ton of reserach >.<