The science of sleep and the economics of sleeplessness.
The Conversation, CC BY52,8 Mo (download)
Only about one quarter Australians report getting eight or more hours of sleep. And in pre-industrial times, it was seen as normal to wake for a few hours in the middle of the night and chat or work.
While women's sleep is affected by children, men's sleep is affected by work and finance stress. Couples living in more gender equal countries have improved sleep quality.
Our genes are important when it comes to aptitude for sleeping soundly.
Homeless people are far more likely to suffer sleep deprivation with all its associated problems.
You might be trying to catch up on sleep. Sleep scientists say some children need only nine hours of sleep at night, while others need as much as 11 hours. It depends on the person.
Science shows that early starts can be bad for teenagers' health. Schools and universities would be better off starting at 10am.
Sleep problems can lead to anxiety and depression, and vice versa. General improvements to sleep might be beneficial, whether a person has anxiety, depression, or both.
Snoring has been linked to serious health conditions such as obstructive sleep apnoea and even cardiovascular disease.
If behavioural sleep problems persist beyond infancy, there could be implications for children’s emotional and attentional development longer term.