★ What is "deep sleep"?
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The quality of sleep is not depended on the length of time but by the quality of sleep.
The sleep which plays a decisive role on human health is the "deep sleep" at night.
Quality of 6 hours’ deep sleep is much higher than 12 hours’ light sleep.
"Deep sleep" is the best and deepest stage of human sleep.
You can not hear any noise outside at this moment and it is difficult for others to wake you up.
After you wake up, you will feel refreshing. At this moment, hormone in your body experiences plenty of secretion.
Immune cells and a variety of damaged cells (especially brain cells) are in rehabilitation; fatigue disappears and the energy is in the storage;
The digestive system is busing in absorbing nutrients materials; large wastes are discharged. . . .
"Deep sleep" makes it assurance that children grow tall and their intellectuals develop;
young man is full of energy;
middle-aged people enjoy good health;
elderly enjoy health and longevity.

★ Impact of lack of sleep for human
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Immune system has dropped 50% when taking fewer 3 hours sleep than before!
Have you remembered feeling sleepy after you've got a cold?
You will get better feeling after a long sleep that is the body's self-protective reaction.
It inhibits other function and strength the immune function by sleep.
Because most of the body's immune adjustment completes during the night, it will allow you to resist infection.
When you are lack of sleep, the white blood cells - the body's immune cells do not have enough time and energy to play efficiency.
If you often have sleep for less than 5 hours per night, the body's resistance to bacteria will be down by 50%!
It means that you have the double chance of being infected with the bacteria environment around.
The worse is that you need to heal in a longer time.

★ Principle of Deep Sleeper
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Playing with wave audio of the α-wave and δ-wave
It first makes users physical and mental relaxation by α-wave and
Then gradually adjust the user's brain wave to synchronization of δ-wave (i.e., state of deep sleeping) to get the deep sleep.

★ The effect of Deep Sleeper
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- Relax quickly and promote sleep
- Enjoy 6 times of the deep sleep (based on 8 hours sleep)

★ Who should use Deep Sleeper
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- Difficult to falling asleep or easy to wake up
- Poor sleep quality
- Like to making dream
- Long-term mental fatigue,easily agitated
- Long-term sleep disorder

★ Note
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Deep Sleeper is only to assist your sleep
With regular physical exercise will be better