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01
Why quality sleep matters
Sleep isn’t just a pause – it’s a gamechanger for body and mind. While you dream, countless processes are happening in the background: your brain sorts memories, the immune system recharges, muscles repair, and cells renew. Those who sleep well feel more focused, energised – and it shows.
02
Sleep quality & duration: how much is enough – and what really matters?
Whether you need five or nine hours of sleep depends on the individual. What’s more important than the number of hours is how restorative your sleep actually is. If you wake up on your own and feel refreshed – great. But if your alarm pulls you out of sleep every morning, it’s worth checking in on your sleep habits.
According to research, good sleep quality is defined by:
Falling asleep within 30 minutes
Waking up no more than once during the night
Falling back asleep within 20 minutes
Spending about 85% of your time in bed actually sleeping
Want to dive deeper? Sleep trackers, apps or sleep labs can offer further insight.
03
The four sleep phases – and what happens in each
Falling asleep
Your body begins to wind down. Heart rate, breathing and brain activity slow – you drift into sleep.Light sleep
The first phase of recovery. Your body is in rest mode, you're harder to wake – and this phase makes up about half of your night.Deep sleep
Now the real regeneration begins. Cell renewal, muscle repair, immune system boost – this phase is key to physical recovery.REM sleep (dream sleep)
Brain activity surges, dreams become vivid. Heart rate and breathing pick up – your mind processes the day.
These phases repeat several times a night, with REM phases becoming longer toward morning.
04
Tip for waking up refreshed
You’ll wake more easily at the end of a full sleep cycle – roughly every 90 minutes. Count backwards from your wake-up time to find your ideal bedtime.
Example: If you need to get up at 6:00 am, falling asleep around 10:30 pm or midnight is ideal.
05
Sleep is more than rest – what actually happens while we sleep?
Learning & memory
During sleep, your brain sorts the day: important things are stored, the rest cleared out. That’s why sleep and cognitive performance go hand in hand.
Immune system
Your immune system “learns” while you sleep – new research shows that during deep sleep, immune cells store information about pathogens they encountered during the day.
Cell repair & beauty sleep
Repair processes kick into high gear during sleep. Skin, muscles, organs – everything regenerates. Even your brain gets a "clean-up": waste products that build up during the day are flushed out.
06
Chinese organ clock – always waking at the same time?
Do you regularly wake up at a specific time – no matter when you go to bed? According to Traditional Chinese Medicine (TCM), this could be a sign that a specific organ is active or strained. Each time of night is connected to a different organ – and your body might be trying to tell you something.
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