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Rhythm and Light

Field-tested writing about rhythm and light, each piece signed and dated.

The right order after a night shift: what to do and what to skip
Rhythm and Light

The right order after a night shift: what to do and what to skip

Let us set the limits of the right order after a night shift first: it reliably improves steadier sleep, and it does not deliver overnight. Anything…

Desmond HaleDesmond Hale·May 27, 2026·4 min read
Tracking sleep without obsessing: making the complicated part simple
Rhythm and Light

Tracking sleep without obsessing: making the complicated part simple

Separate two things in tracking sleep without obsessing: the outcome you want and the action you can sustain. When the gap is too wide, shrink the…

Delphine RouxDelphine Roux·May 21, 2026·4 min read
Alarm setups for heavy sleepers: the full sequence and where it drifts
Rhythm and Light

Alarm setups for heavy sleepers: the full sequence and where it drifts

Advice on alarm setups for heavy sleepers tends to split in two: impossibly complex, or sold as one click. Reality sits between. It needs some…

Amos ReillyAmos Reilly·May 15, 2026·4 min read
What to do instead of scrolling in bed, explained once properly
Rhythm and Light

What to do instead of scrolling in bed, explained once properly

There is plenty written about what to do instead of scrolling in bed and little you can act on. This piece stays concrete: every action can be done…

Harriet LowellHarriet Lowell·May 9, 2026·4 min read
Naps and neck pain: judging it before you start
Rhythm and Light

Naps and neck pain: judging it before you start

Most people want naps and neck pain to make things better. The workable version of that goal is steadier: a floor you can hit on a bad day.…

Desmond HaleDesmond Hale·May 3, 2026·4 min read
How long natural waking takes, explained once properly
Rhythm and Light

How long natural waking takes, explained once properly

Advice on how long natural waking takes tends to split in two: impossibly complex, or sold as one click. Reality sits between. It needs some patience…

Delphine RouxDelphine Roux·April 27, 2026·4 min read
Can a disrupted clock be reset: method, rhythm and limits
Rhythm and Light

Can a disrupted clock be reset: method, rhythm and limits

Anyone who has spent time on can a disrupted clock be reset has a failure story: a strong start, a collapse in the middle, then silence. This is not…

Amos ReillyAmos Reilly·April 21, 2026·4 min read
How soon to eat after waking: a version you can actually follow
Rhythm and Light

How soon to eat after waking: a version you can actually follow

Most people do not fail at how soon to eat after waking from misunderstanding it. They fail because understanding is not doing. What follows is the…

Harriet LowellHarriet Lowell·April 15, 2026·4 min read
Evening exercise and sleep onset: three things to understand first
Rhythm and Light

Evening exercise and sleep onset: three things to understand first

If you only read one paragraph, read this: evening exercise and sleep onset depends on how the situation is set up, not on how you feel at the time.…

Desmond HaleDesmond Hale·April 9, 2026·4 min read
Light, mood and the short days: a practical plan for ordinary weeks
Rhythm and Light

Light, mood and the short days: a practical plan for ordinary weeks

Put light, mood and the short days back into a real week, with overtime, travel and days you cannot be bothered. Any plan that only survives good…

Delphine RouxDelphine Roux·April 3, 2026·4 min read
Handling jet lag on arrival: the order that saves effort
Rhythm and Light

Handling jet lag on arrival: the order that saves effort

Separate two things in handling jet lag on arrival: the outcome you want and the action you can sustain. When the gap is too wide, shrink the action…

Amos ReillyAmos Reilly·March 28, 2026·4 min read
Why a fixed wake time beats a fixed bedtime: four details people skip
Rhythm and Light

Why a fixed wake time beats a fixed bedtime: four details people skip

Anyone who has spent time on why a fixed wake time beats a fixed bedtime has a failure story: a strong start, a collapse in the middle, then silence.…

Harriet LowellHarriet Lowell·March 22, 2026·4 min read
Eight hours and still tired: making the complicated part simple
Rhythm and Light

Eight hours and still tired: making the complicated part simple

There is plenty written about eight hours and still tired and little you can act on. This piece stays concrete: every action can be done at the…

Desmond HaleDesmond Hale·March 16, 2026·4 min read
How to take a twenty-minute nap: nine specific questions
Rhythm and Light

How to take a twenty-minute nap: nine specific questions

Let us set the limits of how to take a twenty-minute nap first: it reliably improves energy that holds through the afternoon, and it does not deliver…

Delphine RouxDelphine Roux·March 10, 2026·4 min read
What weekend catch-up sleep really fixes: the order that saves effort
Rhythm and Light

What weekend catch-up sleep really fixes: the order that saves effort

Most people do not fail at what weekend catch-up sleep really fixes from misunderstanding it. They fail because understanding is not doing. What…

Amos ReillyAmos Reilly·March 4, 2026·4 min read
Getting to bed before eleven: what to do and what to skip
Rhythm and Light

Getting to bed before eleven: what to do and what to skip

Anyone who has spent time on getting to bed before eleven has a failure story: a strong start, a collapse in the middle, then silence. This is not…

Harriet LowellHarriet Lowell·February 26, 2026·4 min read
Recovering from a late night: nine specific questions
Rhythm and Light

Recovering from a late night: nine specific questions

There is plenty written about recovering from a late night and little you can act on. This piece stays concrete: every action can be done on the…

Desmond HaleDesmond Hale·February 20, 2026·4 min read
Structuring the first hour after waking: the order that saves effort
Rhythm and Light

Structuring the first hour after waking: the order that saves effort

Put structuring the first hour after waking back into a real week, with overtime, travel and days you cannot be bothered. Any plan that only survives…

Delphine RouxDelphine Roux·September 12, 2026·4 min read
How morning light sets the clock: four details people skip
Rhythm and Light

How morning light sets the clock: four details people skip

Most people want how morning light sets the clock to make things better. The workable version of that goal is steadier: a floor you can hit on a bad…

Amos ReillyAmos Reilly·September 6, 2026·4 min read
The half-life of caffeine: making the complicated part simple
Rhythm and Light

The half-life of caffeine: making the complicated part simple

Separate two things in the half-life of caffeine: the outcome you want and the action you can sustain. When the gap is too wide, shrink the action…

Harriet LowellHarriet Lowell·August 31, 2026·4 min read