Traditional alarm clocks wake you up at a specific time regardless of what stage of sleep you're in. Sleep Cycle can wake you up when you're in your lightest sleep stage. Having used Sleep Cycle for ...

Ever wonder why some mornings you wake up ready to go, and others you feel like a zombie? The difference often comes down to when you wake up during your sleep cycle, and that’s exactly what a sleep ...

Sleeping for 7 to 9 hours at night isn't the only way to catch some z's. Here are four alternative sleep cycles -- and they're pretty obscure. Annie Miller Medical Reviewer Annie Miller is a licensed ...

Let’s be real: most of us treat sleep like an optional luxury rather than a vital health practice. We fall asleep to blue screens, snooze our alarms half a dozen times, and wonder why we’re exhausted ...

The sleep cycle has three NREM stages and one REM stage. Deep sleep occurs in stage 3 and is crucial for feeling refreshed. REM sleep helps in processing and storing memories. As we sleep, our brain ...

Estrogen also promotes healthy sleep: It helps the body use serotonin and other neurochemicals that assist sleep and contributes to higher-quality sleep, with fewer awakenings throughout the night and ...