Living · 6 pages · 12 min
How sleep pressure builds
Time awake raises a drive to sleep that is not the same thing as the clock.
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From the opening
Sleep pressure is the homeostatic drive that rises the longer you stay awake and falls again during sleep. It is one of two processes that time sleep, the other being the circadian clock. The opening covers adenosine tracks time awake, the clock is a separate gate, and slow-wave sleep pays the debt.
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Inside
- Adenosine tracks time awake
- The clock is a separate gate
- Slow-wave sleep pays the debt
- A second evening can feel livelier
- Where the idea stops applying
- A distinction worth keeping
Sources
- The two-process model of sleep regulation
- Adenosine as a signal of homeostatic sleep pressure