We receive messages about the importance of sleep beginning in childhood. You may remember mandatory naps enforced by adults ...

REM sleep plays a crucial role in our physical and mental health. For Sleep Week, we speak to the experts to find out how much we need to function well.

The average adult needs around four to six hours of core sleep every night to hit the most vital stages of rest and protect ...

Ahead, we’re diving into all things REM sleep vs deep sleep for Sleep Awareness Week 2025 — including what happens during each stage, when they occur, how much of each we need.

Get more REM sleep by taking steps to get better sleep overall, experts say. (Getty Images) (SimpleImages via Getty Images) You did it!

For older adults, too much or too little sleep has been tied to cognitive issues. By Dana G. Smith Getting too little sleep later in life is associated with an increased risk for Alzheimer’s ...

Sleep Cycles: One rapid eye movement (REM) stage and three non-REM stages that altogether last about 90 to 120 minutes Benefits: Physical and mental recuperation and memory consolidation Disorders ...

Reduced oxygen during REM sleep may lead to white matter damage in the brain. The researchers said the results call for a renewed discussion about sleep apnea screening and treatment in older adults.

Research has shown that how you react to that unwelcome recollection will depend on how much sleep you get. If you’re well rested, your brain will be able to quickly suppress the negative memory.