Can power naps compensate for
sleep deprivation?
Reaching the holy grail of eight hours of sleep each night feels like an impossible
goal in modern life. Between stress, chaotic schedules, and doom scrolling on TikTok
and Instagram, sleep quickly slips down the priority list. But what if a simple power
nap could compensate for sleep loss? It sounds tempting, but is it too good to be
true? In the animal world, short intervals of sleep are often essential to survive.
Chinstrap penguins, for example, take turns protecting their young and foraging.
Instead of long periods of sleep, they rely on microsleeping – extremely short naps of
as little as four seconds – adding up to 15 hours a day.1 Elephant seals nap while
taking deep dives up to several hundreds of meters, to rest safely while avoiding
predators.2 If animals can rely on strategic napping, can humans use the same trick to
stay well-rested and focused despite sleep deprivation? Let’s delve into the
neuroscience behind power naps.
What is a power nap? linked to different diseases such as
Before figuring out if power naps can help Alzheimer’s.6
with sleep deprivation, we first must define
what a power nap is. Most research papers
consider power naps to be sleeping for 10-30 Sleeping stages
minutes outside of regular sleeping hours. 3 Not all naps are the same. Sometimes you
However, the frequency of the naps and the wake up feeling recharged, while other times
amount of time that a nap takes differs you feel even more tired than before. This is
greatly throughout different cultures in the because sleep consists of different stages,
world.4 That is why it is important to look at each with its own characteristics.7 Four
distinct stages form a cycle that lasts about 90
the effect of naps of different lengths.
minutes and is repeated roughly four times
per night. Sleep begins with the N1 stage,
which lasts about 1–5 minutes and is easy to
Sleep necessity
wake from. The typical “falling sensation” is
But why do we need to sleep? Research caused by sudden muscle contractions. The
shows that having a good night's rest is next stage, N2, makes up about half of the
important for staying alert during the day and cycle and is known for so-called "sleep
maintaining attention.5 It is also important for spindles" - brief bursts of interaction between
critical cognitive functions such as perception, the thalamus and cortex - which are
planning and memory. Even how well important for memory consolidation. In stage
someone can regulate emotions is partly N3, the deepest sleep occurs. Waking
determined by the quality of sleep they get. someone during this stage is difficult and can
Getting good quality sleep is also important leave someone feeling groggy and cognitively
for the glymphatic system. This is a waste impaired for 30–60 minutes. The trend
clearance system that rids the brain of waste toward deeper sleep ends with the rapid eye
protein, and the suppression of this system is movement (REM) stage. The brain becomes
sleep deprivation?
Reaching the holy grail of eight hours of sleep each night feels like an impossible
goal in modern life. Between stress, chaotic schedules, and doom scrolling on TikTok
and Instagram, sleep quickly slips down the priority list. But what if a simple power
nap could compensate for sleep loss? It sounds tempting, but is it too good to be
true? In the animal world, short intervals of sleep are often essential to survive.
Chinstrap penguins, for example, take turns protecting their young and foraging.
Instead of long periods of sleep, they rely on microsleeping – extremely short naps of
as little as four seconds – adding up to 15 hours a day.1 Elephant seals nap while
taking deep dives up to several hundreds of meters, to rest safely while avoiding
predators.2 If animals can rely on strategic napping, can humans use the same trick to
stay well-rested and focused despite sleep deprivation? Let’s delve into the
neuroscience behind power naps.
What is a power nap? linked to different diseases such as
Before figuring out if power naps can help Alzheimer’s.6
with sleep deprivation, we first must define
what a power nap is. Most research papers
consider power naps to be sleeping for 10-30 Sleeping stages
minutes outside of regular sleeping hours. 3 Not all naps are the same. Sometimes you
However, the frequency of the naps and the wake up feeling recharged, while other times
amount of time that a nap takes differs you feel even more tired than before. This is
greatly throughout different cultures in the because sleep consists of different stages,
world.4 That is why it is important to look at each with its own characteristics.7 Four
distinct stages form a cycle that lasts about 90
the effect of naps of different lengths.
minutes and is repeated roughly four times
per night. Sleep begins with the N1 stage,
which lasts about 1–5 minutes and is easy to
Sleep necessity
wake from. The typical “falling sensation” is
But why do we need to sleep? Research caused by sudden muscle contractions. The
shows that having a good night's rest is next stage, N2, makes up about half of the
important for staying alert during the day and cycle and is known for so-called "sleep
maintaining attention.5 It is also important for spindles" - brief bursts of interaction between
critical cognitive functions such as perception, the thalamus and cortex - which are
planning and memory. Even how well important for memory consolidation. In stage
someone can regulate emotions is partly N3, the deepest sleep occurs. Waking
determined by the quality of sleep they get. someone during this stage is difficult and can
Getting good quality sleep is also important leave someone feeling groggy and cognitively
for the glymphatic system. This is a waste impaired for 30–60 minutes. The trend
clearance system that rids the brain of waste toward deeper sleep ends with the rapid eye
protein, and the suppression of this system is movement (REM) stage. The brain becomes
