Portrait of Megan Caldwell, JavaSleep contributor
JavaSleep Contributor

Megan Caldwell

31 pieces published
A serene, dimly lit bedroom photographed at dawn, soft golden morning light streaming through…
Circadian May 2026 · 5 min

Sleep Hygiene Isn't a Bedtime Routine: What Actually Moves the Needle

There is a version of sleep advice — you have read it, probably this week — that reads like a spa menu. Dim the lights. Lavender. No screens after nine. A cool, dark room. A cup of chamomile.

By Megan Caldwell · Read →
A close-up photorealistic shot of an analog bedside alarm clock on a wooden nightstand…
Circadian May 2026 · 4 min

The Quiet Cost of Daylight Saving Time: What "Gaining an Hour" Actually Does to Your Circadian Rhythm

Every fall, around the first Sunday in November, a particular sentence makes the rounds at dinner tables: at least this is the good one — we get an hour back.

By Megan Caldwell · Read →
A close-up photorealistic still life of a medical sleep study report resting on a…
CPAP May 2026 · 10 min

After a Sleep Apnea Diagnosis: What's Actually Happening in Your Throat, and What Happens Next

There is a number on the report. It is usually the first thing a person notices, even before the doctor's name at the top.

By Megan Caldwell · Read →
A photorealistic interior shot of a modern CPAP machine sitting on a wooden nightstand…
CPAP May 2026 · 10 min

CPAP Batteries: What CPAP Therapy Actually Demands on the Road

The common advice runs like this: if you use a CPAP and you want to travel, buy a battery, plug it in, sleep anywhere.

By Megan Caldwell · Read →
A close-up macro photograph of a Mimosa pudica plant sitting inside a dim wooden…
Circadian May 2026 · 6 min

The Circadian Rhythm Is Older Than You Think — and Younger Than the Science

The idea that the human body keeps its own time — that there is a clock running inside us, independent of sunrise — sounds like something we have always known. We haven't.

By Megan Caldwell · Read →
Close-up macro photograph of small white scored 5mg tablets spilled across a clean white…
Medication May 2026 · 5 min

Dexamphetamine vs Methylphenidate for Narcolepsy: An Australian Wake-Promoting Medication Guide

There is a quiet contradiction in Australian narcolepsy care: the cheapest, oldest, most heavily regulated wake-promoting medication on the shelf — dexamphetamine, a drug first synthesised in 1887…

By Megan Caldwell · Read →
A quiet inner-Sydney sleep clinic consultation room photographed in soft late-afternoon light streaming through…
Narcolepsy May 2026 · 7 min

How to Actually Get Xyrem in Australia: A Procedural Roadmap for Patients with Narcolepsy

A woman in her early thirties sits across from me in a clinic room in inner Sydney with a printout in her lap. She has had narcolepsy with cataplexy since she was nineteen.

By Megan Caldwell · Read →
A dimly lit clinical sleep laboratory at night, photographed from the foot of an…
Diagnosis May 2026 · 4 min

Daytime Sleepiness in Chronic Fatigue Syndrome: What the Sleep Lab Can and Can't Tell You

When a patient walks into the clinic and says, "I'm tired all day, I can barely function, my sleep must be broken" — the logic feels airtight. It usually isn't.

By Megan Caldwell · Read →
A photorealistic overhead shot of a woman lying in a rumpled bed in late…
Sleep Disorders May 2026 · 6 min

If I'm sleeping nine hours a night, why am I still exhausted? A clinical look at idiopathic hypersomnia

If you sleep nine or ten hours a night, wake up feeling as if you haven't slept at all, nap for two hours in the afternoon, and still find yourself fighting to stay upright at 4pm — and your bloods…

By Megan Caldwell · Read →