New research suggests that cultural norms and expectations play a role in how much sleep people need for optimal health.

DEAR DR. ROACH: I am 90 years old and cannot sleep at night. I have tried taking two or three times the dosage of most ...

Roughly one-third of Americans have used an electronic sleep-tracking device and close to 70% of those people have changed behaviors because of the data they were presented with, according to a ...

Sleep needs vary from person to person, and while a lucky few can thrive on less, most of us need seven to nine hours a night to feel and function our best. If you’re regularly skimping on sleep and ...

'Newsweek' recently spoke with experts to explain why people talk in their sleep. Dr. ... "Half of all kids between the ages of three and 10 years old carry on conversations while asleep, and a ...

They were the first people identified with familial natural short sleep, a condition that runs in families like other genetic traits. Fu and Ptáček traced their abbreviated slumber to a mutation ...