Experts have revealed why a large portion of Americans fail to stay asleep all night while offering advice on how to improve ...

For seven days, they recorded their diet against objective sleep parameters. The study concluded that a 6% rise in protein ...

A study on birds finds that when jackdaws are sleep-deprived, they stop sleeping with one eye open and enter deeper sleep, risking safety.

A vast majority of Americans wake up regularly during the night, according to a U.S. News survey. Sleep expert Wendy Troxel explains why this happens and how to help.

Spending lower proportions of time in two deep sleep stages — including REM sleep — may be linked to volume changes in ...