Twenty Minute Nap & Wake (for polyphasic sleep)
Milarepa
Twenty Minute Nap was designed with polyphasic sleep in mind. 2m of winddown, 20m of sleep, 38m of wakefulness. 8Hz - 4Hz in 2m, 4Hz for 20m, 4Hz - 40Hz in 1m, 40Hz for 37m.
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