1. Humans spend a third of their life sleeping. That's about 25 years.
    ♦ SOURCE
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  2. Parents of new babies miss out on 6 months worth of sleep in the first 2 years of their child's life.
    ♦ SOURCE
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  3. The record for the longest period without sleep is 11 days.
    ♦ SOURCE
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  4. An experiment in 1998 found that a bright light shone on the backs of human knees can reset the brain's sleep-wake clock.
    ♦ SOURCE
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  5. Sleeping less than 7 hours each night reduces your life expectancy.
    ♦ SOURCE
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  6. Only one-half of a dolphin's brain goes to sleep at a time.
    ♦ SOURCE
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  7. Some Deaf People Make Sign Language in Their Sleep.
    ♦ SOURCE
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  8. Lack of sleep
    can cause weight gain
    of 2 pounds (0.9 kg)
    in under a week.
    ♦ SOURCE
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  9. Before alarm clocks were invented, there were "knocker-ups" who went tapping on client's windows with long sticks until they were awake.
    ♦ SOURCE
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  10. A snail can sleep for 3 years.
    ♦ SOURCE
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  11. It's impossible to
    sneeze while sleeping.
    ♦ SOURCE
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  12. Most people can survive for
    up to 2 months without eating,
    but people can only live
    up to 11 days without sleeping.
    ♦ SOURCE
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  13. Sleeping on the job is acceptable in Japan, as it's viewed as exhaustion from working hard.
    ♦ SOURCE
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  14. Sea otters hold hands when they sleep so they don't drift away from each other.
    ♦ SOURCE
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  15. The ability of the brain to tell what's important from what's not is compromised by lack of sleep.
    ♦ SOURCE
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  16. People experience better sleep during the new moon and worse sleep during a full moon, a study found.
    ♦ SOURCE
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  17. Many Tibetan monks sleep upright.
    ♦ SOURCE
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  18. Half of the pilots surveyed in the UK admitted to having fallen asleep while flying a passenger plane.
    ♦ SOURCE
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  19. Cats sleep for
    70% of their lives.
    ♦ SOURCE
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  20. Believing You've Slept Well, Even If You Haven't, Improves Performance.
    ♦ SOURCE
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  21. Memories take hold better during sleep.
    ♦ SOURCE
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  22. Horses can sleep standing.
    ♦ SOURCE
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  23. Rabbits often sleep with their eyes open.
    ♦ SOURCE
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  24. John Lennon sometimes liked to sleep in an old coffin.
    ♦ SOURCE
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  25. Later school start times improve sleep and daytime functioning in adolescents, a study says.
    ♦ SOURCE
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  26. In 1849, David Atchison became President of the United States for just one day, and he spent most of the day sleeping.
    ♦ SOURCE
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  27. You burn more calories sleeping than you do watching television.
    ♦ SOURCE
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  28. The occurrence of nightmares could be due to heart conditions, migraine, sleep deprivation and beta blockers.
    ♦ SOURCE
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  29. Sleep deprivation affects the brain in multiple ways that can impair judgment and slow reaction.
    ♦ SOURCE
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  30. Neuroscientists believe babies don't dream for the first few years of their life.
    ♦ SOURCE
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  31. Women experience significantly more nightmares than men and have more emotional dreams, a research found.
    ♦ SOURCE
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  32. A baby's brain can use up to 50% of the total glucose supply, which may help explain why babies need so much sleep.
    ♦ SOURCE
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  33. During WW1, a Hungarian man was shot in the frontal lobe, making it impossible for him to fall asleep. He continued to live a full, sleepless life.
    ♦ SOURCE
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  34. Giraffes only need 5 to 30 minutes of sleep in a 24-hour period.
    ♦ SOURCE
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  35. Morphine derives its name from Morpheus, the god of sleep and dreaming in Greek Mythology, for its tendency to cause sleep.
    ♦ SOURCE
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  36. Koalas sleep up to 20 hours a day.
    ♦ SOURCE
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  37. In darkness, most people eventually adjust to a 48-hour cycle: 36 hours of activity followed by 12 hours of sleep. The reasons are still unclear.
    ♦ SOURCE
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  38. The chances of us eating even one spider in our sleep throughout our lifetime is close to 0%.
    ♦ SOURCE
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  39. 8%
    of Americans sleep naked.
    ♦ SOURCE
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  40. The average person in France sleeps 8.83 hours per day, the most in the developed world.
    ♦ SOURCE
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  41. 40%
    of adult Americans have always slept on the same side of the bed.
    ♦ SOURCE
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  42. Drinking caffeine in the evening delays our brain's release of melatonin and interrupts our circadian rhythm by as much as 40 minutes.
    ♦ SOURCE
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  43. While you sleep, your brain filters out noises that might wake you up if it doesn't think you're in danger.
    ♦ SOURCE
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  44. We lose over a pound of weight during sleep by exhaling.
    ♦ SOURCE
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  45. Dysania is the state of finding it hard to get out of bed in the morning.
    ♦ SOURCE
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  46. Depression can cause you to dream up to 3 to 4 times more than you normally would.
    ♦ SOURCE
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  47. Somniphobia is the fear of falling asleep.
    ♦ SOURCE
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  48. The average person falls asleep in seven minutes.
    ♦ SOURCE
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  49. People who procrastinate may be more likely to have insomnia, a study found.
    ♦ SOURCE
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  50. People who frequently take naps tend to die younger than those who don't, a study found.
    ♦ SOURCE
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  51. It's illegal to lie down and fall asleep with your shoes on in North Dakota.
    ♦ SOURCE
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  52. 73% of college students report sleep problems, a study found.
    ♦ SOURCE
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  53. Trees "sleep" at night, relaxing their branches after dawn and perking them up before sunrise.
    ♦ SOURCE
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  54. 3 AM is when most Americans are sleeping (95.1%). Conversely, 6 PM is when most Americans are awake (97.5%).
    ♦ SOURCE
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  55. People ascrib more importance to pleasant dreams about a person they like than a person they don't like.
    ♦ SOURCE
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  56. A plane-crash dream is more likely to affect travel plans than either thinking about a crash or a government warning, a study says.
    ♦ SOURCE
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  57. Violent dreams may be an early sign of brain disorders down the line, including Parkinson's disease and dementia.
    ♦ SOURCE
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  58. People in Britain who wake in the middle of the night are most likely to do it at 3:44 a.m.
    ♦ SOURCE
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  59. Studies show that napping at work can boost your productivity.
    ♦ SOURCE
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  60. People who play video games are more likely to be lucid dreamers, having control over their actions in dreams, than those who don't.
    ♦ SOURCE
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  61. Research has found that the more visually creative a person is, the lower the quality of their sleep.
    ♦ SOURCE
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  62. According to a study, each kid in a woman's household increases her risk of getting insufficient sleep by 46 percent.
    ♦ SOURCE
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  63. Night owls are more likely to suffer from nightmares, surveys suggest.
    ♦ SOURCE
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  64. Wealthy ancient Egyptians slept with neck supports rather than pillows to preserve their hairstyles.
    ♦ SOURCE
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  65. 75% of couples go to bed at different times at least four times a week, a UK study found.
    ♦ SOURCE
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  66. If you deprive a fruit fly or a fish of sleep, it will try to catch up the next day.
    ♦ SOURCE
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  67. To your brain, one sleepless night is the cognitive equivalent of being legally drunk.
    ♦ SOURCE
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  68. Researchers from NASA say the perfect nap lasts for 26 minutes.
    ♦ SOURCE
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  69. 1% to 3% of the world population are short sleepers, people who live happily on just a few hours of sleep per night.
    ♦ SOURCE
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  70. Lack of sleep may shrink your brain.
    ♦ SOURCE
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  71. 42% of of highly-mobile and regular home workers worldwide suffer from insomnia, as opposed to 29% of regular office workers, according to a UN study.
    ♦ SOURCE
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  72. Sleeping under a weighted blanket can help reduce insomnia and anxiety.
    ♦ SOURCE
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  73. Blind people are twice as likely to smell things in their dreams as sighted people.
    ♦ SOURCE
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  74. 75% of Americans dreamt almost always in black and white in 1940, while today is just 12%.
    ♦ SOURCE
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