If you nap, before 3pm, under 25 minutes.

Same rules, shifted: dark cave after the shift, 'morning' light at your wake time.

Talk to a doctor. That can be apnea. A pillow will not treat it.

Sleep Optimization Protocol

Light, caffeine cutoff, a cool dark room, and a 30-minute wind-down you repeat

25 min6 photographed stepsBeginner

You will set a wake time, get morning outdoor light, pick a caffeine cutoff, make the bedroom boring and dark, run the same 30-minute wind-down, and handle a bad night without sleeping until noon and wrecking tomorrow.

What you'll learn

Why morning light matters more than a fancy mattress
Caffeine timing
The 65°F / 18°C idea
What to do if you're not asleep in 20 minutes

Inside this course

The clock in your headLight is the lever. Wake time is the anchor.
The caveCool, dark, quiet. Phone elsewhere.
Wind-downSame sequence so the brain gets the joke.
The night that goes badlyDon't sleep until noon. Don't triple-shot at 5pm.

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First steps from The clock in your head

See how every step looks — photo, checklist, and pro tips included.

Daylight in the eyes in the morning. Dim at night. Ancient and still true.

01Outside within an hour of waking

10 minutes outdoors, even if it's ugly weather. Indoor bulbs are weak next to daylight. This starts the timer for sleepiness later.

Same wake time 7 days, weekends as close as you can. Dim warm lamps after sunset. Phone night mode is a bonus, not a substitute.

02Last coffee math

Caffeine's half-life is often 5–6 hours. Bed at 11? 3pm is a safer last cup for a lot of people. Sensitive? Noon.

Alcohol may knock you out and then shred the second half of the night. If you drink, earlier, and don't stack it with a shame spiral about a wrist score of 64.

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