Now that 2018 has arrived I would like to share with you 20 interesting things about sleep that you didn’t know. Scientists researching the sleeping habits of humans and animals have found some really fun facts about sleep that I found worth sharing! So let’s move to the list below.

1. An estimated 15% of the population are sleepwalkers. This is based on a research made by the National Sleep Foundation. Unlike common belief you can wake up someone who is sleep walking.

2. 25% of married couples sleep in separate beds!

3. Around 12% of the population dream only in black and white! This is related to your age, so the older you are the higher is the chance you dream in black and white!

4. Cats spend two thirds of their lives sleeping!

5. Giraffes only spend 1.9 hours a day to sleep. This is the opposite for Koalas that spend a total of 22 hours a day sleeping!

6. Falling asleep should take you around 10-15 minutes. If you need less than that then you probably suffer from sleep deprivation.

7. Humans are the only mammals on earth that willingly delay sleep.

8. The human body can never adjust to shift work! This is a great problem for all professionals that work this way.

9. A student back in 1964 managed to stay awake for a total of 264.4 hours! This is a world record!

10. A new-born baby will spend 65% of their sleep in REM.

11. An elephant can sleep while standing up. This is during the non-REM phase.

12. Scientists haven’t found conclusive evidence on whether animals dream or not.

13. Sea otters hold hands during sleep. This is so they don’t drift away from each other!

Sea otters holding hands

Sea otters holding hands during sleep.

14. English Bulldogs are the only dogs that suffer from sleep apnea. This is down to their anatomy!

15. The two times of the day that tiredness peaks are 2 a.m and 2 p.m.

16. Whales and dolphins can only fall half asleep. This is because they need oxygen. Each side of the brain take turns so they can swim to the surface for air.

17. Lack of sleep can make you gain weight! It can add up to 0.9kg per week.

18. Sneezing is not possible during sleep.

19. Rabbits often keep their eyes open during sleep.

20. 5% of people sleep naked!