Two large cohorts (one UK, one Chinese) found shifting from optimal to non-optimal sleep or stopping napping linked to higher ...

A new international study drawing on 73 million nights of data reveals that our sleep patterns are seriously shaped by the day of the week, the season, and where we live. Working with sleep data from ...

Higher nighttime light exposure is associated with increased light sleep duration, with complex effects on deep sleep duration. Subgroup analyses show stronger associations in older adults, smokers, ...

“My child wakes up at 2am and is up for 1-2 hours!” One of us remembers very clearly the first time her daughter ended up doing this. At around 14 months, she woke up in the middle of the night and ...

The switch from daylight saving to standard time offers a reprieve for those who need more sleep. Clocks fell back an hour on Sunday morning and many people may have enjoyed an extra hour of slumber.

If you’ve ever tossed and turned through the early weeks of pregnancy, unsure whether your changing sleep patterns meant anything more than discomfort or hormones—you’re not alone. And now, a ...

That tendency to stay up late might be affecting more than just your morning mood. Growing research suggests your natural sleep chronotype, whether you’re an early bird or night owl, could ...