But how do sleep cycles work? To find out, I took part in a polysomnography. This is a gold standard sleep study that helps ...

To understand more about what makes an ideal nighttime routine, The Focus spoke with Olivia Arezzolo, Australia’s leading sleep expert, who revealed the four stages of her own evening routine.

"Deep sleep builds your immune system, and REM sleep regulates and fine-tunes it," says Darwall-Smith agrees. During deep ...

memory may start to falter at this stage, your reaction time will be worse and you'll be extremely fatigued. At this point, you've been going four days without proper sleep and are at peak sleep ...

On a good night, we cycle four or five times through several stages of sleep, each with distinct qualities and purpose—a serpentine, surreal descent into an alternative world. Wile, the seven ...

No single theory can fully explain dreams, but we do know that they are closely related to the stages of sleep. There are four stages of sleep: light non-rapid eye movement (REM) sleep stages 1 ...

The first is non-REM (rapid eye movement) sleep, which happens in four stages. “Stages one and two are the light form, then stages three and four are that really deep, restorative non-REM sleep ...

If I were looking at you in a sleep lab, I could actually look at your EEG recordings and I could look at how much stage three, four and REM sleep you get because that really is the determinant of ...

causing deleterious effects on sleep stages such as REM and slow-wave. One of the first praises that many people sing of the Pod 4 is that it helps them go to sleep faster and sink into a deeper ...

From temperature regulation to gentle alarms and health tracking, the Pod 4 Cover is a cool sleep solution. After using it for a few months, these are our main takeaways.