A person’s sleep needs are highly individual, Holliday-Bell says. If you feel refreshed and ready for the day after nine ...

Sleep is still a mystery, despite how critical it is for our health. Most of us spend roughly one third of our lives sleeping, but you may need more or less than eight hours a night. Here’s what ...

Here's how much sleep you really need, based on your age. Sleep is more than a sweet escape or rare reward to enjoy when ...

Here’s what sleep scientists and doctors say about how much you really need — and whether your gender plays a role. “The reasons aren’t entirely clear, but it’s an essential thing that ...