I’ve had it several times, but not often. First time wasn’t until late 20s. I have other sleeping problems, so I had already read a lot about sleep paralysis. If I hadn’t, I think the first time would have been terrifying. Instead, it was mostly just confusing. It felt exactly like some wires crossed in the brain. I was awake and not awake.
My dream state had me lying in my bed, but the room was different and vague unfriendly-feeling figures were standing around talking about me. But I knew this was a dream, and had another state that had me just lying in my bedroom as normal—but I hadn’t opened my eyes so this was just sort of another dream state. The two states sort of mixed. I had realized what was going on, but couldn’t move. It felt difficult to breath, although I think I was breathing just fine. So I thought about meditation and controlling my breathing. I concentrated on my breathing. I at least felt like I was having some influence on my breathing (although I don’t think I did). I felt in control, concentrated solely on my breathing, and forgot about the dream states. I drifted back to sleep. I woke up some time later (I don’t know if it was 6 hours or 2 minutes) feeling very cautious, confused, and embarrassed.
After that, when it happens I concentrate on my breathing. I can then take control of my breathing. Then I breath in and out slowly like I’m meditating. I feel in control. My body relaxes. The sleeping-dream state fades away. I can move and then wake up. I’ve found it always happens near the time I normally wake up. So I can get up and go about the day with no problems. Except that I fell really weird, like I’m not sure if anything I really real. It makes for a bad day. So the last couple of times, I’ve tried to wake up, and then go back to sleep for a little while. That seems to help. It seems to give the brain a chance to reconcile everything and then you can wake up feeling normal.
However, in one case I had an experience like someone else posted, where after going back to sleep I dreamt that I had woken up and gone through the morning routine of eating breakfast, showering, getting dressed, and so on, only to wake up and realize it was a dream and I had to do it all over again for real. It still felt better to go back to sleep and then “wake up for real” rather than force myself awake a go through the day in a state of questioning reality.