Light sleep is the beginning of your sleep cycle and your body's way of winding down. Breathing, heart rate and muscle changes prepare your body for the deeper sleep to come. Light sleep is broken ...

"I have to get my deep REM sleep," expresses a common confusion about two very different types of sleep. Deep sleep and rapid eye movement (REM) sleep are not the same; they do not even overlap. They ...

You’ve heard of REM sleep but what about deep sleep? Experts share why it’s important and how to make sure you’re getting enough of it.

Deep sleep refers to slow-wave sleep — a stage in the sleep cycle when brain waves slow down. Getting enough deep sleep is crucial for numerous bodily functions. But how to increase deep sleep isn’t ...

Everything you need to know about REM sleep, including what it is and how much you need ...

Deep sleep refers to slow-wave sleep — a stage in the sleep cycle when brain waves slow down. Getting enough deep sleep is crucial for numerous bodily functions. But how to increase deep sleep isn’t ...

Your watch says you had three hours of deep sleep. Should you believe it? Millions of people rely on phone apps and wearable ...

Success isn’t just about strategy and execution — quality sleep fuels energy, decision-making and emotional stability. These six simple sleep habits will help you perform at your best every day.

United States, December 29, 2025-- Good Sleep is a new climate-controlled mattress topper that uses surgical-grade water-cooling technology to help users spend more time in REM and deep sleep stages.