If you use a sleep tracker at night, these are the three metrics you should be paying attention to in the morning.

Are sleep trackers on your phone helping you get a full night's rest? NPR's Life Kit investigates.

A new analysis of data from older Americans indicates that chronic sleep disturbances are associated with a shorter lifespan ...

A new study shows that simple early-life habits, like giving yogurt at age one and ensuring steady night sleep, may influence how strongly children develop memory skills by preschool age. Study: ...

A study involving nearly 200 adults reveals whether meal timing really improves sleep or whether the effect is less than ...