The quest for sufficient baby sleep is a universal parent concern, often fraught with conflicting advice and anxieties.

Though it might seem like the question "How much sleep do you need" gets a new answer every other week, the The National Sleep Foundation says its new chart breaks the question down like never before.

CINCINNATI (WKRC/AP) - While some kids have already returned to classrooms, many students will go back to school in the coming weeks. And with that comes a return to a "normal" bedtime routine. But ...

The amount of sleep a person needs recalibrates over time, and circadian rhythms change with age. The 16-year-old who stayed up until midnight may become a 36-year-old who gets drowsy by 10 p.m. At 70 ...

From babies who cry through the night to teens who sleep all morning to older adults who just can’t seem to catch any z’s, sleep patterns and the amount of sleep you need change throughout our lives.