Lions and gerbils sleep about thirteen hours a day. Tigers and squirrels nod off for about fifteen hours. At the other end of the spectrum, elephants typically sleep three and a half hours at a time, which seems lavish compared to the hour and a half of shut-eye that the average giraffe gets each night.

[…]

Humans need roughly one hour of sleep for every two hours they are awake, and the body innately knows when this ratio becomes out of whack. Each hour of missed sleep one night will result in deeper sleep the next, until the body’s sleep debt is wiped clean.


David K. Randall

From Dreamland: What Happens While You Sleep and How It Affects Your Every Waking Moment. For something we do so much of, sleep is surprisingly ill-understood. But wow … giraffes. Party animals.

via Brain Pickings

(via jtotheizzoe)

(via jtotheizzoe)

  1. memoriesnightmare reblogged this from lalalovedraco
  2. lalalovedraco reblogged this from jtotheizzoe
  3. jockin-jb reblogged this from tatterednotes
  4. ashipwithoutaname reblogged this from jtotheizzoe
  5. under-water-secrets reblogged this from jtotheizzoe
  6. hallamwhite reblogged this from i-think-im-a-sofa
  7. ralexsparrow reblogged this from parkstepp
  8. msdistress reblogged this from jtotheizzoe
  9. wild-sweet-blueberry reblogged this from jtotheizzoe
  10. givedobbythedamnsocks reblogged this from bonedust
  11. parkstepp reblogged this from bonedust
  12. bonedust reblogged this from jtotheizzoe
  13. braingasmic reblogged this from jtotheizzoe
  14. bouncywalker reblogged this from saffythegeek
  15. brother-prickle reblogged this from jtotheizzoe
  16. odobenidae reblogged this from jtotheizzoe
  17. i-think-im-a-sofa reblogged this from thislife-isyours
  18. ohsarahrose reblogged this from jtotheizzoe
  19. bbymina reblogged this from cptnsexy
  20. cptnsexy reblogged this from jtotheizzoe
  21. itschillyoo reblogged this from me0w-kimmycat
  22. me0w-kimmycat reblogged this from jtotheizzoe
  23. victoriaelric reblogged this from whatshallwedo
  24. chilope reblogged this from jtotheizzoe
  25. guilmongivesreallygoodbread reblogged this from jtotheizzoe