Most of the recommendations out there for how many hours of sleep we need for optimal health are given based on age. That ...

Many of us judge how well-rested we are by the number of hours we sleep each night, but new research suggests another factor ...

For most of us, getting less than seven hours of sleep translates into grogginess, sluggish thinking, and an overwhelming ...

Most experts recommend getting seven to nine hours of sleep a night — so why do we sometimes get a full night’s rest and ...

“There is no evidence that there is a fundamental biological reason women need more sleep,” said Dr. Suzanne Bertisch, a ...