Is it useful to learn to REM-nap even though I don't plan to sleep polyphasically? Is it worth going through adaptation?
I don't entirely follow... Is there such a thing as 'learning to REM-nap' without the proposed mechanism of the pressure of sleep rebound forcing a REM rebound during the space of a nap?
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I am looking for rationalist pdfs, ebooks and audiobooks for an upcoming flight. If anyone can bring any of these this Friday, that will be appreciated. (I've finished reading the Sequences)