Human sleep consists of repetitive cycles of REM and non-REM sleep. In a specially equipped laboratory, you can check whether your body has undergone all the necessary stages.
But a more affordable option is to use a sleep tracker. This is the most popular device for determining the phases of sleep. The gadget analyzes the physiological processes of the user at night and, in the morning, downloads a detailed report to his smartphone.
Sensors record breathing and sounds.
The sleep tracker resembles an ordinary fitness bracelet or a small wireless box. It determines the phases of slow and fast sleep using programmed algorithms and sensors. The tracker has a sound recording sensor, a heart rate monitor and an accelerometer.
The sensitive mechanism stores and analyzes all the sounds the user makes in a dream.
The heart rate monitor reads the heartbeat.
There is an optical sensor on the back of the bracelet. It emits light to the skin and analyzes the level of its absorption. This allows the device to determine the heart rate.
When the heart rate rises, the person tracker pakistan marks the transition from slow to fast sleep. At the same time, the accelerometer tracks any, even the smallest, movements of a sleeping person.
The best time to wake up is REM sleep.
The accelerometer and heart rate monitor allow you to calculate the REM sleep phase. Thanks to this, the tracker wakes the user at the most appropriate moment, when the body is physically ready.
This occurs when the heart rate increases and the first movements after five complete sleep cycles. In this case, the person wakes up rested and alert.
And if the user needs to wake up at a certain time, the tracker selects the optimal moment in the specified time range. This is the main difference between the alarm clock in the tracker and the usual one. He does not pull a person out of sleep but gently wakes him up at the right moment.
Where can I buy it?
Sleep-tracking sensors are built into modern smartwatch models. For example, the Apple Watch even has a standard Sleep app. However, it provides limited statistics and does not advise the user on what to do with this data.
More accurate are special devices that have no other functions than sleep monitoring. They are synchronized with the application on the smartphone. The program every morning, every week, and every month generates detailed reports on the quality of the user’s rest.