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> 4 hour intervals What about those 90 minute cycles that are also commonly cited in popular sleep-advice? Those wouldn't work into a 4hour schedule.
by kahawe 15y ago
> 4 hour intervals
What about those 90 minute cycles that are also commonly cited in popular sleep-advice? Those wouldn't work into a 4hour schedule.
- chollida1 15y agoHonestly i don't know what specifically you are referring to. Are you referring to those sleep cycles where you have 4 90 minute naps a day instead of sleeping once at night? I'm not the subject matter expert, so I don't want to speak authoritatively:)
- DrJokepu 15y agoI believe the grandparent was referring to the same phenomenon described in the relevant Wikipedia article at http://en.wikipedia.org/wiki/Sleep#Sleep_stages http://en.wikipedia.org/wiki/Sleep#Sleep_stages
- technel 15y agoHe's talking about REM cycles, which last 90 minutes. Generally people recommend that you sleep for an amount of time that is a multiple of 90 minutes so that you do not disrupt one of these cycles.
- kahawe 15y agoI was talking about whatever contemporarily popular science apps and websites like http://sleepyti.me/ http://sleepyti.me/ are buying into.
- chollida1 15y agoAh, in that case I don't know, but I will ask. Their latest research indicates that a full sleep cycle lasts approximately 4 hours, which does fly in the face of the older sleep data. it's entirely possible that their hypothesis will turn out to be incorrect.