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sleep inertia
A period of grogginess and confusion that occurs immediately after waking up from sleep.
Examples:
- After taking a long afternoon nap, John experienced significant sleep inertia, struggling to remember what day it was.
- The sleep inertia hit her hard when she woke up to find it was already evening.
hypnopompia
The state of consciousness leading out of sleep, often associated with vivid dreams or confusion as one wakes up.
Examples:
- In a state of hypnopompia, he couldn't shake off the remnants of the dream even as reality returned.
- Hypnopompia can make waking up in a dark room particularly disorienting.
circadian confusion
Disorientation caused by the misalignment of the body's internal clock, often due to disrupted sleep patterns.
Examples:
- Her circadian confusion was evident when she mistook dusk for dawn after an long afternoon nap.
- He tried to fix his circadian confusion by avoiding naps, but it didn't always work out.