Write a To-Do List Before Bed: A 5-Minute Habit That May Help You Fall Asleep

You lie down, the lights go off, and your brain hands you a list: the email you did not answer, the form due Friday, the thing you promised to buy. Unfinished tasks are one of the most common reasons a tired body sits on top of a busy mind.

A simple writing exercise may help. This article covers the sleep lab study behind it, why it works, how to do it, and how to follow it with a short breathing routine.

Does writing a to-do list before bed help you fall asleep?

In one careful lab study, yes. Researchers brought 57 healthy young adults, aged 18 to 30, into a sleep laboratory. Before lights out, each spent 5 minutes writing. Half were randomly assigned to write a to-do list of tasks they needed to remember over the next few days. The other half wrote about tasks they had already completed. Sleep was measured with polysomnography, the gold standard.

The to-do list group fell asleep significantly faster. And the more specific their list, the faster they fell asleep. Writing about completed activities showed the opposite trend (Scullin et al., 2018).

It is one study of young, healthy people on a single night, so it is a promising finding rather than a settled one.

Why writing it down quiets the mind

Unfinished tasks tend to stay active in memory. Your brain keeps rehearsing them so you will not forget, which is useful at 3 p.m. and unhelpful at 11 p.m. Writing them down seems to give the brain permission to stop. The list holds the information so you do not have to.

The study's finding about specificity makes sense in that light. "Work stuff" does not let the mind relax. "Reply to Ana about the Tuesday meeting" does.

Once the list is done, the mind still needs somewhere calm to rest. That is where a slow breath comes in. Giving your attention a gentle, repetitive job is a known way to reduce unwanted thoughts before sleep; in one study of people with insomnia, an engaging calm task shortened the time to fall asleep (Harvey & Payne, 2002).

How to do the to-do list and breathing routine

1. Keep a notepad and pen outside the bed. A kitchen table, a desk, or a chair in the bedroom.
2. About 15 minutes before bed, write for 5 minutes. List what you need to do tomorrow and over the next few days.
3. Be specific. Write the action, the person and the deadline if there is one. Specific lists were linked with faster sleep (Scullin et al., 2018).
4. Close the notepad and leave it there. The list is now "in storage."
5. Lie down and breathe slowly. In through the nose for 4 seconds, out for 6 seconds.
6. Continue for about 10 minutes. If a new task pops up, tell yourself "it can go on the list in the morning," and return to the exhale.
7. Beginner fallback. If 5 minutes of writing feels too long, write just the top three tasks. If counting is hard, simply lengthen each exhale.

What if new thoughts still arrive?

They might, especially in the first week. Keep a small notepad by the bed for this. Write one or two words in the dark, not a full plan, and go back to your breath. Over time, many people find the evening list catches most of it. If the same worry keeps returning, schedule a short "worry time" earlier in the evening to think it through properly, with a pen.

An example list

Here is what a helpful bedtime list might look like, compared with a vague one.

Vague: "Work. Kids. House stuff."

Specific:

• Email Ana the Tuesday meeting notes before 10 a.m.
• Call the dentist to move Thursday's appointment.
• Buy milk and batteries on the way home.
• Pack the gym bag and leave it by the door.
• Sign the school trip form, it is in the blue folder.

The specific version takes the same 5 minutes, but each line is a finished thought. There is nothing left for the brain to keep holding at 11 p.m., because the who, what and when are already on paper.

Making it part of your evening

Choose a fixed point for the list, such as right after you lock the door or set the alarm. Keep the same notepad for it, so the act of opening it becomes a signal that the day is closing. Some people like to tick off the morning's list at the same time, then write the new one. Keep the whole thing to 5 minutes. The goal is to hand the day over, not to review it.

If you share a home, this is also a calm moment to agree on tomorrow's logistics with your partner or family, so those conversations do not happen in bed.

What the research shows

• 57 young adults, single night in a sleep lab: a 5-minute to-do list was followed by faster sleep onset than writing about completed tasks; more specific lists, faster sleep (Scullin et al., 2018).
• 41 people with insomnia: an engaging imagery task shortened time to fall asleep compared with no instructions (Harvey & Payne, 2002).
• 9 studies, 457 people: slow breathing before bed improved self-reported sleep; objective results inconclusive (Eide et al., 2026).
• Insomnia guideline: for chronic insomnia, multicomponent cognitive behavioral therapy for insomnia is strongly recommended (Edinger et al., 2021).

The takeaway: writing tomorrow down and then breathing slowly is a small, low-cost routine with promising early evidence. It is not a treatment for insomnia.

Common mistakes

• Writing in bed. Keep the bed for sleep. Write somewhere else.
• Writing about the day instead. In the study, listing completed tasks did not help.
• Making the list on your phone. It invites one more check of messages. Use paper.
• Turning the list into planning. Write the tasks, not the strategies. Planning wakes you up.

Who should be careful

• People whose worries are about health, safety or serious problems: a list is not enough. Talk to someone you trust or a professional.
• People with long-term insomnia: this habit can help, but cognitive behavioral therapy for insomnia is the recommended treatment.
• People with persistent low mood or anxiety: if worry dominates most nights, speak with a clinician.
• People who snore loudly, wake gasping or are very sleepy in the day: see a doctor about possible sleep apnea.
• Anyone who feels dizzy during breathing: stop and breathe normally.