© Olga Shenderova
August 20, 2026
Marianne Waldenfels
Not sleeping, not scrolling — just doing nothing: Brief periods of rest may be more valuable for our brains than we think. New research suggests our memory may benefit from doing less.
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Doing nothing has gone out of fashion. The moment a gap appears, it gets filled — with news, podcasts, emails, a quick glance at the phone. Even a few minutes of downtime seem to be something we can barely tolerate anymore.
Yet it is precisely these unspectacular moments that have caught the attention of neuroscience. Under the term "wakeful rest," scientists are investigating what happens when we are awake but take in as little new input as possible for a while. The brain may use these pauses to keep processing recently experienced or learned information — and that appears to benefit our memory.
A meta-analysis published in January 2026 synthesized 142 effects from 51 studies. Overall, a small to moderate positive effect of wakeful rest on memory was found, though with considerable variation across studies. The effect was especially pronounced in people with memory impairments, and stronger in older than in younger healthy adults.
Wakeful rest is neither a power nap nor meditation. Participants typically sit or lie quietly for a few minutes — often with their eyes closed and no new tasks to complete. The idea is that learning doesn't end the moment we close a book. New memories need time to be processed and consolidated, and a low-stimulation pause may give freshly formed memory traces just that, without new information constantly competing with them.
Just how lasting the effects of such a brief rest can be was demonstrated by a study from the University of Edinburgh. Participants listened to stories and then spent ten minutes either resting quietly or solving a picture puzzle. Those who had rested after listening were later able to recall more of the stories — and the difference was still detectable a week later.
In an experiment by sleep researcher Erin Wamsley, one group slept for 30 minutes after a learning task, a second rested with eyes closed without falling asleep, and a third completed a distraction task. Both after sleep and after wakeful rest, participants had forgotten less than after the active task. For this particular memory task, no significant difference was found between sleep and rest.
This is far from making wakeful rest a substitute for sleep. It does, however, suggest that the brain keeps working even when we stop feeding it new input.
This is where a second line of research becomes interesting: so-called "local sleep." For a long time, sleep was considered an all-or-nothing state of the entire brain — either we are awake or we are asleep. Research now shows that individual groups of neurons can temporarily adopt activity patterns resembling sleep, even while the organism as a whole remains awake.
Such local sleep states occur in various situations, including during sleep deprivation, and they are not automatically beneficial. In humans, they have been observed just before lapses in attention, for instance. Driving while overtired offers no benefit from local sleep — at the wrong moment, it can seriously impair performance.
A study published in June 2026 in Nature Neuroscience investigated whether such local sleep states could take over some of the functions of sleep. Researchers led by Giulio Tononi and Chiara Cirelli from the University of Wisconsin–Madison deliberately induced sleep-like on-and-off activity patterns in parts of the brains of awake mice.
They subsequently observed changes in these brain regions that are normally associated with sleep: markers of synaptic strength decreased, and during later sleep the local sleep pressure was reduced.
When sleep-like activity was triggered across multiple networks in sleep-deprived mice after a learning task, their memory consolidation also improved despite the sleep deprivation. The findings provide the first experimental evidence that locally induced sleep-like activity can take over at least some of sleep's functions — in mice, at least.
Whether this is related to the effects of ordinary rest breaks remains an open question. In the mouse study, sleep-like activity was artificially induced; there is no evidence that ten minutes on the sofa or a bit of daydreaming puts our neurons into local sleep as well.
A connection is nonetheless conceivable. In low-stimulation situations, the overall activation level of the brain drops, which might make it easier for individual neural networks to shift into brief sleep-like states. For now, this remains a hypothesis. What can be said with more confidence is this: there is evidence that wakeful rest benefits memory consolidation, while local sleep research simultaneously shows that the boundary between sleeping and waking in the brain is far less clear-cut than long assumed.
The often-cited ten minutes of rest is not a magic number, either. It comes from the experimental designs of various studies; no one yet knows how long an ideal rest period should be. And of course, sleep cannot be replaced by such breaks.
Even so, the research offers a simple takeaway: after an intensive period of learning or working, resist the urge to immediately reach for your phone, start the next podcast, or open your emails. Sit quietly for a few minutes without any new input — look out the window, let your thoughts wander.
Perhaps that is the most important message in an era when even idle time is supposed to be used as efficiently as possible: for our brain, doing nothing can very much be a form of work.
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