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Originally Posted by Brutha  Could you point to a source for the number? |
I'd also like to hear more about this one. Sounds very interesting.
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Originally Posted by Brutha If the theory that you should sleep multiples of 90 minutes at a time is right (4,5/1,5 seems to be based on it) working down shouldn't really work, because time spent sleeping is not converted in a liniar fashion into "rest at night". |
The '90 minute cycle' thing is only a starting point. Everyone will be slightly different (my own cycles seem to be just under 80 mins at the moment); as well as the fact that different sleep lengths serve in different ways.
A short (10-20 minute) nap may not be quite the same as a 90 minute one, but it's far more refreshing than not having one at all. You'll also see people who've successfully adapted to a mid-length nap, such as dadeon's 45 minute version. I'm not quite sure why this mid-length version works (effectively 2x22.5 minute naps perhaps), but it obviously does.
Out of interest Brutha, what's your current sleep routine? Personally I'm still fairly close to the 4.5/1.5 thing (slightly shortened now to fit an 80 minute cycle). Occasionally the nap gets broken up into 2 x 20 minute chunks (I realise this doesn't add up to 80 minutes, but it's OK for a day or two).