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 are marsupials, that is, pouched mammals, meaning that the young are born extremely undeveloped, and most of their development occurs in the mother's pouch. They breed from September to February, with females breeding from 2 years of age, and males from 3-4 years after they have established their own territory. Males are extremely aggressive during mating periods. Thirty-five days after mating, the female produces one joey weighing about 0.5 grams and about 2 cm long.