Sleep Talking - Causes. Home >> Sleep Disorders Problems >> Sleep Talking >> Sleep Talking - Causes. Other Sections. Sleep talking may be brought on by stress, depression, sleep deprivation, day-time drowsiness, alcohol, and fever. In many instances sleep talking runs in families, although external factors seem to stimulate the behavior.
- Koalas are mostly nocturnal. Nocturnal animals are awake at night and asleep during the day. Koalas, however, sleep for part of the night and also sometimes move about in the daytime. They often sleep for up to 18-20 hours each day. - There is a myth that Koalas sleep a lot because they âget drunkâ on gumleaves.
Koalas can live up to 18 years for females and 12 years for males.  However, the average lifespan of a male koala in suburban areas is  closer to 2-3 years. It suffers a higâ¦h mortality rate from  accidents with cars, as it is more likely than the female to  wander.