The department of

Sleep Health

Sleep health spans sleep quality, duration, and circadian rhythm — essays, field notes, and science on building rest that actually fits your life.

Pieces 5
A photorealistic portrait of a fit young woman in her mid-thirties lying awake in…
Sleep Apnea May 2026 · 6 min

Sleep Apnea Myths: Am I Too Thin, Too Young, or Too Female to Have It?

A 34-year-old woman runs marathons. Resting heart rate in the low 50s, BMI of 21, no snore loud enough to wake her partner — or so they thought. She goes to a sleep lab for unrelated insomnia.

By Daniel Whitfield · Read →
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Diagnosis May 2026 · 5 min

The Eleven Minutes Before Sleep: What a Sleep Quality Assessment Actually Looks For

Falling asleep instantly is not a sign that you sleep well. It is often a sign that you don't. This runs against everything we tell each other.

By Daniel Whitfield · Read →
A dim, clinical sleep laboratory at night, photographed in a wide horizontal composition with…
Sleep Apnea May 2026 · 6 min

The AHI of 5: What Your Central Sleep Apnea Diagnosis Actually Measures

An AHI of 5. That is the number that, in most American sleep labs, moves a person from "snorer" to "patient." The Apnea-Hypopnea Index — events per hour of sleep — is the single figure that decides…

By Diane Norwood · Read →
A dimly lit bedroom at 2:47am, soft blue glow from a smartphone screen illuminating…
Sleep Health May 2026 · 5 min

A Sleep Health Framework for People Who Are Tired of Generic Sleep Advice

It is 2:47am in Brisbane and someone is reading this on their phone. Their partner is asleep. The dog is asleep. The cricket highlights have finished looping.

By Patrick Sumner · Read →
A dimly lit bedroom at 2:47am, photographed from the foot of the bed, showing…
CBT-I May 2026 · 7 min

The Insomnia Definition That Actually Matters (And Why Three Bad Nights Don't Count)

It is 2:47am in Brunswick, or Bondi, or a quiet street in Adelaide, and you are doing the maths again. Asleep by 11:20. Awake at 1:50. It is now nearly three. You have a 9am meeting.

By Natalie Forsythe · Read →