Restorative sleep is a real public health issue, and it seems essential to optimize the time devoted to it. If the cycles that make up sleep are not respected, productivity, mood and physical health can all be affected. So it's important to understand the phases of sleep if you want to spend restful nights on your Tréca bed. Contrary to popular belief, sleep is a rather complex, active phenomenon. It can be described as follows: wakefulness, slow wave sleep, falling asleep, light slow wave sleep, deep slow wave sleep, REM sleep. A typical night comprises 4 to 6 sleep cycles, each lasting 90 minutes.
The 1st sleep phase is slow wave sleep, during which the brain falls asleep. The body may jerk, breathing is regulated, but it's still easy to wake up. In the 2nd phase, the brain goes into light slow-wave sleep, muscles and eyes relax. Sleep then becomes deeper, the body regenerates and it becomes difficult to wake up. In phase 3, dreams take over the brain, indicating REM sleep. To sum up, your sleep cycle is as follows:
- Slow / light sleep from 10 to 15 min
- Deep sleep 30 min
- Very deep sleep 30 min
- REM sleep: 10 to 15 min.
Added to this is the fact that each individual has his or her own sleep rhythms and needs. After all, every sleep and every sleeper is unique.