Bats sleep 18-20 hours per day.
5
The average person falls asleep in seven minutes.
115
The average cat sleeps about 2/3 of the day.
203
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
"Dysania" is the state of finding it hard getting up out of bed in the morning.
33
People who sleep late have more mental stamina and can outperform early risers.
33