Discover why sleep is more powerful than you think—and how a lack of it can quietly impact everything from your mood to long‑term brain health.

Sleep may not just be rest for the mind—it may be essential maintenance for the body's power supply. A new study by University of Oxford researchers, published in Nature, reveals that the pressure to ...

Peter Eastwood has previously received funding from Research Funding Organisations (e.g. NHMRC, MRFF, NHRIF, Raine Study) and has been a consultant for several sleep-related biomedical device ...

We spend nearly a third of our lives sleeping, yet the biological trigger behind sleep has remained elusive. Despite decades of research, scientists have struggled to identify a concrete, physical ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. Most of us treat sleep like it’s a simple budget item: we ...

People need to sleep, and sleep deprivation can cause many changes in the brain. But we have a poor understanding of why sleep is so crucial. New research has examined a fruit fly model to assess how ...

Learn facts about sleep, during which the body rests, recuperates and performs essential repairs. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

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.

Here’s what the science says.