The wind-down hour is doing more work than your bedtime

These are listed in the order worth acting on, which with winding down before bed is not the order they are usually presented in.

Going to bed is not the same as winding down

Getting into bed alert simply moves the being-awake somewhere less comfortable, and adds frustration to it. The transition into sleep is gradual: body temperature drops, heart rate falls, attention narrows, and none of that happens on command. An hour of lower stimulation before bed gives that process somewhere to start.

This is why people who "cannot switch off" often sleep well on holiday — the wind-down happened without being planned.

The routine works because it repeats, not because it is special

Any sequence you do in the same order every night starts to function as a signal, largely regardless of its content. That is why the advice varies so much between sources and still works: the mechanism is the repetition.

It also means an elaborate routine is worse than a dull one, because you will abandon it on the nights you need it most. Three or four small things, in a fixed order, is usually enough.

Light is the strongest single lever

Bright light late in the evening delays the internal clock, and the effect is much larger than most people assume. Dimming the room an hour before bed does more than any screen filter, because the room is usually brighter than the phone.

Conversely, getting outside in daylight early in the day is the other half of the same mechanism and is frequently the missing piece. Blue-light filters and amber glasses are sold hard for this, and the evidence behind them is thinner than the evidence for simply switching off half the lamps.

What to do with a busy head

Writing tomorrow's list before the wind-down starts moves it out of the part of the evening where it will circle. It works because the mind is trying to hold something it does not trust itself to remember, and paper solves that specific problem.

Put simply, for worry rather than logistics, a set worry time earlier in the evening is more effective than trying not to think at bedtime. If the thoughts only start once the light is off, paper and a pen within reach beat a phone, which solves the same problem while introducing a brighter one.

When the routine is not the problem

Persistent difficulty falling asleep, staying asleep or waking unrefreshed for weeks is worth raising with a clinician rather than optimising alone. Pain, breathing problems, medication, alcohol and shift patterns all override any wind-down, and none of them respond to better habits. Sleep advice is genuinely useful for ordinary bad sleep and genuinely unhelpful for the kind that has a cause.

Months of a carefully kept routine with no improvement is itself useful information, and worth saying out loud at the appointment rather than treating as a personal failure.

If that does not fit your week, it is not a failure of willpower.

A version that survives a bad week

Pick the smallest possible sequence — lights down, something dull, bed — and protect that rather than the ideal one. Skipping it entirely on hard nights is the common failure, because those are the nights the signal is most useful. The measure of a good routine is whether you still do it when you get in late and everything has gone wrong.

The useful part is this: after a run of skipped nights the association weakens rather than disappears, so picking it up again takes a few days rather than starting from nothing.

Everything above, in order of what to do first

1. Going to bed is not the same as winding down. Getting into bed alert simply moves the being-awake somewhere less comfortable, and adds frustration to it.
2. The routine works because it repeats, not because it is special. Any sequence you do in the same order every night starts to function as a signal, largely regardless of its content.
3. Light is the strongest single lever. Bright light late in the evening delays the internal clock, and the effect is much larger than most people assume.
4. What to do with a busy head. Writing tomorrow's list before the wind-down starts moves it out of the part of the evening where it will circle.
5. When the routine is not the problem. Persistent difficulty falling asleep, staying asleep or waking unrefreshed for weeks is worth raising with a clinician rather than optimising alone.
6. A version that survives a bad week. Pick the smallest possible sequence — lights down, something dull, bed — and protect that rather than the ideal one.

The takeaway

Make it small enough that you would still do it on the worst night of the month.

Small and repeatable beats ambitious and abandoned, almost every time.