nostr:npub1ju9twlemhqcy89vstf89k0kyzethk4r5kqktyt4jwxrnhw3ncq3qugwspp that point about sleep paralysis is interesting -- hypnosis deliberately focuses on that

With Indic techniques (samadhi/jhana), they instead describe the feeling of your body slowing down and stilling, to the point where you may only breathe once a minute! 

If you can play with fasting and sleep deprivation, those can help trigger OoBE -- listening to white noise, metronomes ticking, or certain kinds of music can really help too