The day ends when you end it. A practical wind-down routine.

Most sleep advice starts at the pillow. Too late. The nights that go well are decided in the hour before bed, and that hour responds to a routine, not willpower. This page is the whole wind-down: the cut-off, the lights, the temperature, what you eat and drink, and the last step that tells your body the day is finished.

None of it is complicated. All of it stacks.

Because for most of us the day no longer has an ending. The inbox rides home in your pocket, the show autoplays, and your body gets into bed while your head is still at the desk. A wind-down is a short, repeatable off-ramp that gives the day an actual full stop, and sleep researchers generally agree the pattern matters more than any single trick.

The classic symptom of a missing off-ramp is being flat all evening and switched on the moment the light goes off. We wrote about that exact feeling in tired but wired, and the routine itself gets a full walkthrough in how to build a wind-down routine.

Pick a shutdown time 30 to 60 minutes before bed and hold it most nights. The exact time matters less than the consistency, because your body learns the pattern and starts winding down on cue.

Laptop closed, phone on the charger, ideally in another room. Two minutes with a notepad clears the open loops: what is worrying you, what is on tomorrow's list. It sounds too small to matter. It isn't. What actually happens in your body when you do this, heart rate easing, the day-mode systems standing down, is covered in what winding down does to your body.

Drop the lights after dinner and put the screens away at your cut-off. Bright overhead light reads as midday to your body, so lamps only in the evening is one of the cheapest sleep upgrades there is.

Screens are a double problem: the light, and the content that keeps your head in day mode. The feed is built to hold you, and it does not care that it is 11pm. The full case, and what to do if you cannot quit the phone entirely, is in screens before bed.

Cooler than you think. Most guidance points to a room in the high teens Celsius, because your core temperature needs to drop for sleep to hold.

A warm shower before bed can actually help here. The heat brings blood to the skin, and the cool-down afterwards nudges your core temperature in the right direction. Bedding, fans, open windows and the rest of the practical detail is in what temperature should your bedroom be.

Finish dinner a few hours before bed, and move the last drink of anything alcoholic earlier still. A big meal close to lights-out gives your body a job to do when it should be powering down, and a long gap between dinner and breakfast can leave the overnight fuel gauge unsteady. The balance between the two is in eating late and sleep.

Alcohol deserves its own line. A nightcap puts you under quickly, then wears off mid-sleep and chops up the back half of the night. The early knockout gets paid for at 3am. The whole trade is laid out in the nightcap and your sleep.

Water is the opposite problem. Go to bed behind on fluid and you can surface groggy in the small hours; drink a huge glass at lights-out and you book a bathroom trip instead. A smaller drink earlier in the wind-down, with electrolytes so the fluid stays with you, does the job without the interruption. More in hydration and sleep.

Then your problem is staying asleep, not falling asleep, and they are genuinely different problems with different fixes. Falling asleep responds most to the wind-down above; staying asleep responds to the food, drink and temperature settings, because those decide whether the brief surfacing between sleep cycles turns into a real wake-up.

No one's night is one unbroken block. It runs in cycles of roughly 90 minutes, each ending close to the surface. The mechanics are in how sleep cycles work, the two problems are pulled apart in falling asleep vs staying asleep, and the middle-of-the-night wake-up gets its own piece in why you keep waking up at 3am.

Something fixed, physical and the same every night. The power of a last step is not what it contains. It is that your body learns to recognise it as the end of the day.

Ours is Settl. One scoop in cold water, the last thing before bed. It pairs an electrolyte base for overnight hydration with magnesium glycinate, glycine, L-theanine and the rest of the seven actives, every dose printed on the label. No melatonin, so the morning starts clear. The whole formula, dose by dose, is in the ingredients guide.

It does not replace the routine above. It anchors it. The cut-off, the lamps, the cool room, and then the same glass at the same time, the full stop your body comes to expect.