[Glyptodon]

I seem to be stuck in a loop of sleeping 9h and sleeping 6h (which I hate) because I reliably wake up at about the same time, but can't reliably fall asleep exactly 7.5h before it (I guess). Does that suggest my circadian rhythm is just out of whack w/ 24h?

[pcthrowaway]

That depends on whether you're falling asleep around the same time (±1.5 hrs) every night or not.

If you are, then you're likely adjusted to the 24 natural cycle and something else is going on. The closest thing I'm aware of is https://en.wikipedia.org/wiki/Irregular_sleep%E2%80%93wake_r...