The Monday after March’s Daylight Savings is established as the World Napping Day. As you can imagine, there is a good reason for that as this is a very good opportunity to adjust your sleep cycle from the lost hour of sleep during the previous night due to “springing forward”.
It’s well known that humans need approximate 8 hours of sleep and you won’t believe how much different, sleeping states can be for different species.
Let’s see together 10 interesting facts about sleep:
3. Dolphins and whales sleep only with half their brain at a time and with one eye open!
This is essential as they have to come up to the surface for air and also protect themselves against shark attacks. In fact this behavior is also common in birds, ducks, seals, iguanas and many other animals.
5. It may sound funny but some animals have to wake from hibernation to get some sleep.
The reason might be that the animals need to raise their temperature to allow sleep (hibernation is different from sleep).
10. Sea otters will often hold hands while sleeping so that they don’t drift away from each other!
Next time you feel like taking a nap, don’t feel guilty. World Napping Day and science are by your side 🙂