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.
If you need an alarm to get up in the morning, you're probably not getting enough sleep.
With studies from the past year exploring the relationship between smartphone use and mental health, sleep, learning and romance, a more nuanced portrait of the device has emerged.
Poor quality sleep is almost guaranteed over the festive period. Here's how to get some decent shut-eye.
It's normal to feel a bit groggy when you wake up – parts of your brain are still asleep.
Children with an irregular bedtime performed worse on cognitive tests, had worse behaviour and were more likely to be obese than others.
It is worth remembering that sleep 'crises' are far from new.
If you're tossing and turning in the middle of the night, these techniques may help you to nod off.
The amount of time teens have spent working and participating in extracurricular activities has held steady in recent years. There has, however, been one big change in their lives: smartphones.
Mandatory sleep times in early childhood settings do not work for children, educators or parents, and need to change.
Whether you're a night owl or a morning lark, circadian rhythms control just about every aspect of your health.
Poor sleep in infants and children has been linked to an array of problems, from aggression to poor school performance to diabetes, obesity and suicide. Our expert reviews the science.
Taking a power nap on a night shift can leave you feeling groggy. And eating a large meal can reduce your alertness. So, what's a tired shift worker to do to make it through the night?
Teenagers aren't just lazy. Their sleep hormones aren't calibrated to let them get up and go until later in the morning – which has academic and health consequences when school starts too early.
Many hope that marijuana will help their insomnia. A sleep psychologist examines the evidence.
Studies suggest that, even when we go to bed alone, the company we keep by day may determine how well we sleep at night.
Niamh, age 7, wants to know why we have scary dreams. But after 200 years of study, dreams are still very much a mystery.
As the first days of school approach rapidly, an educational psychologist offers strategies for combating anxiety in children and teens.
Quetiapine, sold under the brand name Seroquel, is a short-acting antipsychotic drug to treat major mental illnesses. It has also been increasingly prescribed off-label for insomnia.