People who sleep late have more mental stamina and can outperform early risers.
33
47% of people have a nightmare at least once a month.
186
The higher someone’s I.Q. the more likely they are to be sleep deprived.
29
The human brain is more active during sleep than during the day.
28
A new baby usually deprives each of it's parents around 350-400 hours of sleep in the first year. That is one entire nights sleep per week, per parent.
194
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
The average person falls asleep in seven minutes.
115