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Sunday, 15 June 2025

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Glad that your new schedule works for your productivity, but don't ignore your health. So many studies point to the recuperative benefits of uninterrupted deep sleep, with the negative effects on heart health, weight management and mental clarity when you fail to get that duration regularly.

Do your own research and make your own decisions, but a good (long) night's sleep might be one of the best things you can give yourself.

[Thanks Albert. We cycle through all 4 stages of sleep 4–6 times per night, with each cycle taking about an hour and a half to two hours. Furthermore, the body prioritizes deep sleep, to make sure we get enough; it's the most crucial type of sleep. If people are forced to endure extreme sleep deprivation, once they finally go to sleep the body "rushes through" the initial three stages and goes right into a prolonged period of stage 4 deep sleep. In a normal night, a normal sleeper will have more deep sleep in the first cycle than the later ones. So you aren't depriving yourself of deep (stage 4) sleep by sleeping in two 4-hour phases.

This is setting aside the fact that I couldn't sleep 8 hours in a row to save my life! I've probably done so no more than six times in the past two years. Even before Butters turned up sick. –Mike

(One of the best courses I took at Dartmouth was "Sleeping and Dreaming" with the late Dr. Peter Hauri, who established the Sleep Disorders Center at Dartmouth before moving on to become Director of the Sleep Disorders department at the Mayo Clinic.)]

This is how I lived at university and somewhat later: I would go to lectures, then go home and sleep, then get up so e time after midnight and work until perhaps 4. No disturbances ... except in the summer when birds get up at 3.

Not compatible with much social life, partner or horses, unless partner is very understanding and also willing to deal with horses at 8AM. Let alone possible children.

Do not know if I could do it now.

Did you know that infinite patience brings immediate rewards?

I tried that exact thing in college about half a century ago -- getting up at 3 to do a few hours' work and then getting back into bed. I couldn't focus on anything in the dead of night, and gave it up after a few days.

Now, though, since as an older person I regularly wake up at 3 a.m. and start working on writing projects in my head, it would probably be fine. And I've learned to get back to sleep at 5 or 6, as I regularly (though not that frequently) have to get up about 3:30 to take someone to the airport, a 90-minute or so round trip.

Sounds like it ought to be a psych term—there should be "biphasic personality disorder".

I guess this sleep pattern needs to fit your body. I could not do this to save my life. I remember when my daughter was still a baby and needed to be milk-fed my wife and me had an agreement: I would do the last feed of the day and the very first, and she would do the middle of the night feed. She can handle waking up in the middle of the night, but needs enough sleep in total, while I can manage having less sleep, but cannot handle waking up in the middle of the night.
The same when my daughter was having toothpains and we needed to get up during the night for her. I just cannot wake-up properly at 2 o'clock at night; my brain refuses. So I could not console my daughter, and had to hand her to her mother every time.

Definitely want to hear about the results of this experiment, what the hours of sleep and wake look like. I've thought about trying this for years, but never gotten there. Now that I've got a case of TMB, I get up ~03:00 anyway to relieve the badder.

But don't kill yourself to report results. The wind may come up; the Weathervane shifts.

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