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There are devices made to detect and disturb you (with light, vibrations, etc) during REM sleep, to help with lucid dreaming. If you want to experience a dream, something like that might help, with the fairly safe assumption that you do enter REM sleep.

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I didn't realize this until I had kids and my sleep became constantly disturbed, but the only times I'm consciously aware of my dreams are when I'm awoken during the dream. If I am given the chance to have a peaceful night, then it's just an instantaneous time shift from falling asleep to awake with nothing in-between.

So I could see how one of these types of devices could be handy to gently bring the consciousness out of deep sleep.

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