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 or slow-wave sleep supports memory, growth, and cell regeneration. Not getting enough may contribute to some health conditions, including heart disease and Alzheimer’s disease. You may have ...

Slow wave or deep sleep is a stage in the sleep cycle necessary for proper brain function and memory. Most people need 7–9 hours of sleep per night, but working out how much deep sleep they need is ...

Deep sleep is one of the most essential stages of the sleep cycle, playing a vital role in how well you feel both physically and mentally. Often referred to as slow-wave sleep or delta sleep, this ...

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 ...

A deep, undisturbed sleep should be the norm, but modern lifestyle is taking a toll on the sleep cycle. Research says that maintaining a consistent sleep schedule is responsible for proper heart and ...