The department of
Experiment
Self-experimentation with coffee and sleep lets you test brew variables, bedtime routines, and caffeine timing against your own body's data — field notes and how-tos here.
Pieces
6
Circadian
August 2026 · 12 min
I Copied the Amish for Three Weeks to Fix My Circadian Rhythm — Only Half of It Worked
The advice is standard enough now that hotels print it on the notepad: no screens for an hour before bed. Dim the lamps. Buy the amber glasses.
By Henry Ashford · Read →
Sleep Apnea
June 2026 · 5 min
I Walked 30 Minutes a Day for Eight Weeks to See If Exercise Touches Sleep Apnea
For eight weeks I walked 30 minutes every morning and tracked what happened to my breathing at night, because I wanted to know whether the advice people give about sleep apnea — just move more — was a…
By Claire Munroe · Read →
Sleep Apnea
June 2026 · 6 min
I Sat for 11 Hours a Day and Tracked My Sleep Apnea Risk for a Month
For one month I kept a record nobody asks for: total hours seated per day, against my overnight breathing data.
By Natalie Forsythe · Read →
Sleep Apnea
June 2026 · 4 min
I Tried the Lifestyle-First Sleep Apnea Treatment Before CPAP. Here's What Held Up.
Three months ago a home sleep test handed me an apnea-hypopnea index (AHI) of 18 — squarely in moderate territory — and a referral for a CPAP machine.
By Claire Munroe · Read →
CPAP
June 2026 · 5 min
Three Months on a CPAP, Three Ways of Measuring Whether Sleep Apnea Treatment Is Working
Ninety nights ago a sleep tech handed me a small humming box and a nasal mask and told me to "give it a few weeks." That instruction is the most honest and least useful thing anyone said to me during…
By Daniel Whitfield · Read →
Sleep
May 2026 · 6 min
Six Weeks of Changing My Days, Not My Nights: A Sleep and Lifestyle Experiment
My bedroom was not the problem. That is the part I had to admit before anything got better. For about a year I had been doing what the internet told me to do. Blackout curtains. Thermostat at 18°C.
By James Hartley · Read →
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