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Bedtime To-Do Lists and Sleep: Revisiting the Baylor Study

Revisit Baylor’s bedtime writing study: what five minutes of task listing changed, where the evidence stops, and what future research should test.

Bedtime To-Do Lists and Sleep: Revisiting the Baylor Study
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Oct 24, 2026
Energy & Productivity

In 2018, a Baylor University study published in the Journal of Experimental Psychology: General reported that participants who wrote about upcoming tasks before bed fell asleep faster than those who wrote about completed activities. The experiment tested a specific comparison: five minutes of future-task writing against five minutes of reflection on completed work.

The Economic Times has since revisited the finding as a low-effort way to put upcoming tasks on paper. For busy professionals, the appeal is clear. A brief writing exercise is a modest commitment compared with an elaborate evening routine.

The useful question is whether this older experiment offers a practical idea worth considering. Answering it requires separating the measured result from the broader claims attached to bedtime planning.

Inside the Experiment

Michael K. Scullin and colleagues titled their paper The Effects of Bedtime Writing on Difficulty Falling Asleep: A Polysomnographic Study Comparing To-Do Lists and Completed Activity Lists. According to the reported study, the final sample included 57 healthy young adults. Researchers assessed their sleep overnight in a laboratory using polysomnography rather than relying on participants’ impressions alone.

Participants spent five minutes writing before sleep. One group wrote about tasks they expected to complete in the coming days. The other wrote about activities they had already completed.

That distinction is central to understanding the experiment. Both conditions involved writing for the same amount of time. What changed was the content: future obligations versus completed activities.

The reported result favored future-task writing. Participants in that condition fell asleep faster than participants who wrote about completed activities. Sleep onset, or the time taken to fall asleep, is the outcome to keep in view.

The writing prompt also deserves precision. The experiment concerned tasks expected in the coming days, rather than only the following morning. Describing it as a next-day to-do list captures the general idea but narrows the tested prompt.

For a professional audience, the distinction between the activity and its content is useful. The finding concerns a particular kind of writing, not simply spending a few quiet minutes with a notebook. Future tasks and completed activities were different experimental conditions despite sharing the same format.

The Executive Relevance

The executive relevance lies in how narrowly the activity was defined. It involved recording upcoming tasks rather than building an entire evening planning system. That makes it a reasonable subject for attention without turning it into another demanding performance project.

For professionals whose bedtime thoughts concern unfinished work, the study raises a practical question: would putting those tasks in writing be more useful than continuing to rehearse them mentally? The Economic Times presents the exercise in that light. It is a way to put upcoming obligations on paper.

Our editorial interpretation is that task capture deserves to be distinguished from task completion. Recording an obligation does not require resolving it in the same sitting. Turning the writing period into a broader review of strategy or correspondence would move away from the simple comparison the researchers tested.

There is also a difference between evaluating a bedtime practice and evaluating professional discipline. A task list should not become a scorecard for ambition. The relevant question is whether the activity is useful at the transition to sleep, not whether it produces an impressive inventory of unfinished work.

Within ExecuFuel’s focus on sleep and recovery, the priority is sustained performance rather than adding obligations to every part of the day. A small experiment deserves a proportionate response: attention to what was measured and restraint about everything else.

Where Evidence Stops

The participant group and setting limit the reach of the result. This was a small sample of healthy young adults observed during one laboratory night. It does not establish effectiveness across age groups or among people with insomnia, and it does not establish how the practice works with repeated use at home.

The comparison also leaves an important question unresolved. As the research summary explains, the study did not establish whether future-task writing improved sleep or completed-activity writing worsened it. Both could have contributed to the difference. The experiment compared two writing conditions rather than testing a clinical intervention against usual care.

The proposed explanation requires a separate boundary. The researchers suggested that writing upcoming tasks might help “off-load” thoughts. They did not directly establish that mechanism. Faster sleep onset in the future-task group should therefore not be described as proof that writing reduced cognitive arousal.

The research summary also reports an association between writing more to-do items and faster sleep within the future-task group. That is not evidence that longer lists reliably help everyone. It provides no basis for prescribing a target number of tasks.

Finally, the result does not establish better next-day energy or work performance. It also does not establish improved sleep quality over time or a treatment for persistent sleep problems. Those are distinct outcomes that require their own evidence.

A Bounded Experiment

A practical application should stay close to the tested activity: five minutes spent writing about upcoming tasks before sleep. The research supports considering that exercise as a personal wind-down experiment. Its usefulness can be judged personally without turning the routine into a rigid nightly requirement.

The point is to record tasks rather than use the finding as a reason to extend the workday. The evidence supplies a writing prompt and a duration. It does not supply a reason to add a detailed prioritization system or other performance targets.

Personal observation should remain modest. Someone might find the activity useful or find that it adds little. There is no need to force a favorable interpretation simply because the exercise sounds plausible.

Persistent sleep difficulties belong in a conversation with a qualified professional. ExecuFuel’s resource on thinking through a professional support team offers a broader frame for those decisions. A bedtime task list should remain a small personal experiment rather than the basis for managing an ongoing sleep problem alone.

The Next Test

The most informative follow-up would move beyond the laboratory comparison while preserving its clarity. Repeated use at home would help establish whether the finding holds under ordinary conditions. Broader participant groups would help determine who might benefit.

A comparison with usual bedtime behavior would address another important question: whether future-task writing offers an advantage over doing no writing exercise. Separating that question from the completed-activity comparison would make the practical interpretation stronger.

For an executive audience, future research should also distinguish sleep onset from the outcomes professionals ultimately care about. Next-day energy and concentration would need to be measured directly. They should not be inferred from a difference in how quickly participants fell asleep.

The Baylor experiment remains a useful starting point because it tested a simple activity with objective sleep assessment. Its lasting value will depend on whether further studies reproduce the result in everyday settings and clarify who benefits. For now, the appropriate outlook is measured interest in a small finding with a clear next research agenda.

Sources

  1. Psychologists say writing tomorrow's to-do list before bed is not overplanning, but may help you fall asleep faster by clearing unfinished tasks from your mind, according to researchers at Baylor University - The Economic Times
  2. Racing Mind at Bedtime? Why It Happens and What Helps

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