Current Schedule: Core Sleep: 10pm-1am Naps: 6:00-6:20am, 11:20-11:40am, 5:40-6pm.
I did something a little different today. For the past several days - closer to a week I suppose - I've had a very minor runny nose and post-nasal drip, which caused me to cough occasionally. A little bit after I woke up today I noticed it, as well as a very faint tickle or feeling in the back of my throat. I figured it was just a low-grade cold that my body was fighting off, but I was tired of these silly minor symptoms, and so decided to sleep in today in order to give my body more time to fight whatever was causing these symptoms.
The only reason I'm really doing this is because I feel that I'm mostly adapted at this point. In the beginning of adaptation, I had a cold or two initially but stuck to the schedule, and they eventually resolved on their own. I had read about other polyphasic sleepers allowing themselves to sleep in whenever they felt a cold coming on, but was too concerned about ruining any progress I'd made towards adaptation. I'm hoping I'm past that point here, and figured it may be worth trying to see if it helps these symptoms go away, although I don't necessarily see why my body has to be asleep for it to optimally fight sickness. I suppose the other possibility is that it's not really a cold at all, but rather some minor seasonal allergies or the like.
At any rate, I felt great after my extra sleep, but went back to my regularly scheduled naps in order to return to my schedule as quickly as possible. Updated vitals here.