Psychologists and sleep experts have increasingly recommended a simple mental exercise designed to interrupt racing thoughts before bedtime. The method, known as cognitive shuffling, has become especially popular among people who feel like they are still “working mentally” long after closing their laptops.
For many workers, the issue is not going to bed late. The real problem begins once they finally lie down — and their minds continue operating as if the workday never ended.
Unread emails. Meetings scheduled for the next morning. Problems left unresolved. Ideas appearing suddenly at 2 a.m. The inability to truly “switch off” has become one of the most common side effects of remote work, hyperconnectivity, and constant pressure to stay available.
In that context, a technique called cognitive shuffling has drawn attention from psychologists and sleep researchers in the United States because of its potential to calm the mind before sleep.
The method was originally developed by cognitive scientist Luc Beaudoin and has recently regained visibility after being highlighted by specialists associated with Harvard Medical School and Duke University.
The idea behind the technique is simple: give the brain a light, disorganized, emotionally neutral task that interrupts the spiral of structured thoughts that often appear at night.
The Problem of “Still Working” in Bed
The phenomenon is not new, but it has intensified in recent years. The combination of remote work, smartphones, after-hours messaging, and nonstop productivity culture has made it harder for many people to separate working time from resting time.
Today, for millions of workers, the day does not truly end when the shift is over.
The body may be resting, but the mind remains active.
Mental health specialists explain that many people reach the evening with extremely high levels of cognitive stimulation. The brain stays in “alert mode,” replaying tasks, future scenarios, and unresolved concerns. That makes it more difficult for the body to transition naturally into sleep and can lead to occasional insomnia, nighttime awakenings, or exhaustion even after several hours of rest.
The issue particularly affects professionals in technology, logistics, customer service, remote administration, freelancing, and hybrid jobs where schedules have become increasingly blurred.
What Is Cognitive Shuffling?
The technique aims to interrupt accelerated thinking patterns by using random, unrelated words and mental images.
The exercise begins by choosing a neutral word with no emotional weight — for example: “blanket,” “garden,” “pillow,” or “kitchen.” The person then takes each letter of that word and quickly thinks of other unrelated words that begin with the same letter.
For example:
- B: bird, bottle, bridge
- L: lamp, lemon, lake
- A: airplane, apple, anchor
The key is that the words should not be connected or form a story.
The brain shifts away from structured thoughts — such as work worries or anxiety — and toward a scattered sequence of simple mental images.
According to specialists cited by TIME, the process partially imitates the brain’s natural behavior as it begins transitioning into sleep.
Why It Works Better Than “Counting Sheep”
Although it may sound similar to traditional sleep techniques, cognitive shuffling differs in one important way: it keeps the mind occupied enough to reduce anxiety, but not stimulated enough to fully activate it.
Counting sheep often becomes too repetitive. Cognitive shuffling, by contrast, introduces small visual and mental variations that create what some specialists describe as a form of “soft cognitive noise.”
Sarah Gray, a cognitive behavioral therapy specialist for insomnia associated with Harvard Medical School, explained that the method helps the brain move away from organized thought patterns and into more scattered, relaxed mental states.
Visualization also plays an important role. People do not need to imagine complex scenes — brief and superficial mental images are enough.
The goal is not intense concentration, but the opposite: allowing the mind to lose structure gradually.
The Impact of Remote Work and Hyperconnectivity
The growing popularity of techniques like cognitive shuffling reflects a deeper issue in today’s labor market: more people feel like they never fully stop working.
Constant notifications, virtual meetings, pressure to answer messages quickly, and the ability to work from virtually anywhere have also created a new challenge — mentally disconnecting.
Many remote workers admit they feel guilty while resting. Others say they check emails from bed or wake up thinking about unfinished tasks.
In digital and administrative sectors, nighttime mental exhaustion has already become one of the leading causes of occasional insomnia and daily fatigue.
That is why specialists increasingly emphasize that quality sleep no longer depends only on schedules or physical routines, but also on learning how to reduce cognitive overload.
Not a Replacement for Medical Treatment
Experts stress that cognitive shuffling is not a substitute for professional treatment for more serious sleep disorders such as sleep apnea, chronic insomnia, or neurological conditions.
However, it may be helpful for people who generally sleep well but occasionally struggle to “turn off their minds” after stressful days or intense workloads.
Specialists also recommend avoiding turning the technique into another obligation or personal performance test. The goal is not to “do it perfectly,” but simply to give the brain a gentle enough activity to encourage rest.
At a time when work increasingly invades personal life, techniques like cognitive shuffling reflect something many workers are beginning to understand: resting well also requires training.
