How much sleep do you need at different ages? Doctors explain age-wise sleep requirements, why sleep needs change across life ...

7-9 hours remains the guideline, but not everyone needs that much sleep. Some need less, some need more. Sarah Mitroff/CNET If you find yourself asking, “How much sleep do I need?” you’re not alone.

Researchers trace how different sleep stages may fine-tune what we remember, trading specifics for more general knowledge. When you purchase through links on our site, we may earn an affiliate ...

I’ve heard eight hours of sleep is ideal, but I often get less than that. (And sometimes more.) How much sleep do I really need? The answer is complicated, but worth exploring. We often hear about the ...

Sleep is a key determinant in cognitive performance optimization. Learn about sleep's benefits and what you can do to improve ...

Suppose that your fifth-grader typically goes to bed at 9:30 PM on school nights and gets up at 6:30 AM. Since it often takes a little while to fall asleep after getting into bed, that means 8.5 to ...

People report vivid dreams during rapid-eye-movement sleep. But is this sleep stage really the only time we dream? When you purchase through links on our site, we may earn an affiliate commission.

If you find yourself asking, “How much sleep do I need?” you’re not alone. Between work, family, late-night scrolling and early morning alarms, getting enough rest can feel impossible. But sleep isn’t ...