Biphasic Sleep, Day 12 (Day 3 on the revised schedule)
Another successful day. No tiredness in the morning this time, despite having gone on an even longer run than yesterday! Some tiredness after lunch--about 3pm--which I took an extra 25-minute nap to remedy. I'm thinking the flexible and optional 25-minute nap may become a staple of my schedule, since it helps with unpredictable bouts of tiredness that seem to be able to pop up at any time of day. As long as I stick to an average of one 25-minute nap a day, it shouldn't be a problem with adaptation or biphasic sleep in general.
A brief, totally unnecessary aside on terminology: I have my "core sleep" and "nap" and now another optional 25-minute sleep period that I ought to name differently to easily differentiate it from the others. I think the right term to use would be "catnap" ("powernap" would work too, but I think the term is too gimmicky).
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