Coaching practices for The Two Process Model of Sleep on a Budget

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Does this sound like the set of challenges you might be facing?

  • I’ve thrown everything at my sleep
  • After a rough night I go to bed early, nap in the afternoon, sleep in on the weekend to make up for it
  • On the days I barely move or do anything mentally demanding, I’d expect to crash hard at night
  • I get into bed an hour or two early to give myself the best shot at sleep, and instead I just lie there weirdly wide awake
  • There’s a tangled decision with too many moving parts to hold in my head all at once, and I feel pushed to just call it now and be done

Practices that may help

  1. The Two-Process Model of Sleep
    Alexander Borbély’s two-process model describes sleep as the interaction of two independent systems: Process S (homeostatic sleep pressure, which builds throughout waking hours like a battery draining) and Process C (the circadian clock, which gates sleep propensity in a 24-hour rhythm). Good sleep requires both processes to align — sleep pressure high and the clock in its nighttime phase simultaneously. The model is well established in sleep science.
  2. Use the two-process model to diagnose your specific sleep problem
    Identify whether your sleep issue is a Process S problem, a Process C problem, or both — because the fixes are different.
    The Two-Process Model of Sleep
  3. Build homeostatic sleep pressure by staying awake
    Resist napping late or sleeping in when you want to fix your sleep — consistent waking builds the pressure that makes sleep arrive.
    The Two-Process Model of Sleep
  4. Use vigorous daytime activity to build a clean Process S curve
    Physical and mental activity during the day steepen the sleep pressure curve, making evening sleepiness arrive on time.
    The Two-Process Model of Sleep
  5. Align your sleep window with the circadian gate
    Go to bed when both systems are aligned: sleep pressure is high AND the clock is in its sleep phase.
    The Two-Process Model of Sleep
  6. Sleep on important decisions
    For complex decisions, delay commitment overnight — sleep processing integrates information deliberate thought misses.
    The Three Bs of Creativity: Bed, Bath, and Bus
  7. Treat sleep as the highest-ROI longevity investment
    No single intervention produces more broad-spectrum health benefit per hour than consistent, high-quality sleep.
    Healthspan vs. Lifespan: Optimizing How Well You Age, Not Just How Long
  8. Challenge the beliefs that make insomnia self-perpetuating
    Identify and revise the catastrophic beliefs about sleep that amplify arousal at bedtime.
    Sleep Restriction Therapy
  9. Use body temperature to assist sleep onset
    Drop your core temperature before bed — the temperature fall is a key Process C signal for sleep onset.
    The Two-Process Model of Sleep
  10. Prevent bedtime creep: protect sleep duration at the start, not just the end
    Debt accumulates most insidiously not from occasional late nights but from a bedtime that drifts 15 minutes later each week.
    Sleep Banking: Building a Buffer Before Sleep Loss

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