Cows can sleep standing up, but they can only dream lying down.
745
You can reschedule your sleeping pattern by not eating 12-16 hours before you want to be awake. Upon eating after this time period, your internal clock will reset to a new day, with the time of your first meal being interpreted as "morning".
11
Some people have a "natural alarm clock" allowing them to wake up when they want. This is actually caused by a burst of the stress hormone adrenocorticotropin.
15
Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
22
You burn more calories sleeping than you do watching television.
348
People who sleep late have more mental stamina and can outperform early risers.
33
"Dysania" is the state of finding it hard getting up out of bed in the morning.
33
Termites work 24 hours per day and they do not sleep.
57