Quiet sleep or non-REM

During the sleep cycle we will have two kinds of state of quiet sleep is the sleep state and active sleep state. Quiet sleep is often referred to as NREM sleep or non-REM (Rapid Eye Movement or No. No Fast Eye Movement).

When quiet sleep or NREM or non-REM sleep, a person's body will experience a quiet activity. Pulse, respiration and blood pressure of the body will move more calm and orderly. This is a process in which the body restores the body. Muscles, glands of the body and improved body composition. Substances that are not useful will be removed from the body. At the time of quiet sleep also occurred merging the proteins to be used during active sleep.

In the state of quiet sleep or NREM or non-REM sleep, a person will experience 4 phases. Here are the stages that occur when you start to fall asleep.


Sleep Light
The first time someone started to fall asleep, you enter the first stage where you have mild sleep or sleeping shallows, where the muscles will relax your body and brain waves will move irregularly. At this stage usually begins when you are drowsy and fell asleep. The first phase lasts for 30 seconds to 7 minutes of your sleep.

Actually Sleep
Next, you will enter the second stage the actual sleep, where brain waves swell, fragments of thoughts and images might have emerged and are moving in our minds but we do not realize it, even you are not aware of the circumstances around you. The second phase lasts for 20 percent of all your bedtime.

More Sleep Asleep
The third stage you sleep more soundly. At this stage, your body is getting hard to be awakened because it was asleep.

Sleep Terpulas
The fourth stage is the stage of sleep most soundly. At this stage, the brain produces large waves, most of the blood flow to the muscles, there was recovery and repair body functions. Growth hormone is produced and the process occurs at this stage of growth takes place. The third and fourth phase lasts for 50 percent of the time our sleep.

If when asleep, we can not enter the third stage and fourth, then most likely when we'll wake up feeling tired even depression.

Finish entering the fourth stage, you will experience the first stage again, entering the second stage and so on. This cycle will be repeated several times. In general, repetition of this cycle lasted for 3 to 5 times. The duration of a time cycle takes about 90 to 110 minutes.