1. Chinstrap penguins: a nap shorter than your yawn
In a 2023 study of nesting chinstrap penguins, sleep bouts averaged about four seconds. The birds fell asleep more than 10,000 times a day, adding up to over 11 hours of sleep in each brain hemisphere. Those numbers describe the studied breeding birds, not every penguin everywhere. [1]
Their imaginary calendar would need a very small font: nap, nest duty, nap, repeat. A four-second timer would barely give the rest of us time to put the phone down.
2. Great frigatebirds: sleeping with no seat to recline
Researchers recorded the brain activity of great frigatebirds and detected sleep during flight. Sometimes one hemisphere slept; sometimes both did. During the observed flights, the birds averaged only about 42 minutes of sleep a day, much less than on land. [2]
That gives “airplane mode” a rather literal twist. The impressive part is the measurement: researchers recorded brain activity, rather than assuming that a long flight must include sleep.
3. Spinner dolphins: half the brain takes a break
A slowly swimming spinner dolphin may be resting. These dolphins can let one brain hemisphere sleep while continuing to move and coming up for air. NOAA explains why an animal that looks awake to a visitor may still need undisturbed rest. [3]
Think of it as a very unusual shift rota. It is not, unfortunately, a skill we can borrow to sleep through one half of a meeting. Give resting wildlife space instead of trying to get a reaction.
4. Giant pandas: lunch, lounge, repeat
Wild giant pandas commonly nap between feeding sessions for two to four hours. They may sleep on their belly, side or back, stretched out or curled up. There is more than one way to get comfortable in the bamboo neighbourhood. [4]
If pandas wrote an out-of-office message, “between bamboo appointments” would be a strong contender. Their long pauses are a panda fact, not a suggested length for your afternoon power nap.
5. Orangutans: a separate bed for the daytime snooze
Orangutans usually construct a nest in trees for the night. They sometimes also nap in a simpler daytime nest. A rest spot does not always need the full overnight construction project. [5]
Apparently, the guest room and the nap room can be different branches. For your own pause, a comfortable chair is a much more practical starting point than taking up tree architecture.
What these animal naps tell us—and what they do not
The interesting comparison is how different these patterns are. Seconds of sleep at a penguin nest, a panda’s long pause and a dolphin’s sleeping hemisphere are not interchangeable versions of a human 20-minute break. Nor does an animal’s ability to move during sleep make drowsy driving safe for a person.
Keep the curiosity; leave the animal schedules to the animals. If you want to try a pause of your own, start with what napping means, then choose a comfortable place to rest. No nest-building skills required.