SheldonDec 8, 2022

I woke up at 7pm today. Tomorrow I'll probably get up at 9pm. Around this time next week, I'll be waking up at 7am.

This is normal for me. I have a rare-ish circadian rhythm disorder known as #Non24. My sleep cycle doesn't track with the sun. It's not at all rare amongst people who are blind, but it's rare amongst sighted people.

I also suspect it's actually more common than believed & there are people out there reputed to be lazy, immature, or erratic when they just can't sleep normally.

Show threadKirtJul 2, 2023

@sysop408

i thought 26 hours was normal?

Show threadSheldon

@kirt my memory's fuzzy on this, but I do believe that a 26 hour circadian rhythm is considered within the normal range.

What's not normal for people like me is that there's no way to reset it with daylight cycles. In normal people, the sunlight causes your body clock to reset so you can sleep at night.

In people with Non24, that reset mechanism is diminished or entirely broken so we're wide awake at 2am because it feels like 10am to us.

Jul 31, 2023 at 2:55pmWeb