How does a Sleep Tracker actually work?

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How does a Sleep Tracker?

• Actually Work

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Introduction

• Everyone seems to be struggling to get more and
  better sleep these days. Almost half of American
  adults (44) report feeling sleepy 2-4 days a
  week, while 28 report feeling sleepy 5-7 days a
  week, according to the National Sleep
  Foundation's 2020 Sleep in America Poll. Four in
  ten adults say sleepiness interferes with their
  daily activities at least occasionally.
  Furthermore, getting insufficient sleep can lead
  to a host of illnesses, such as obesity, type 2
  diabetes, blood pressure problems, heart disease,
  strokes, depression, and other mental disorders.

3
Types of Trackers

• Sleep tracking devices can be divided into two
  main categories wearables and non-wearables. The
  wearable devices can be watches, bracelets,
  rings, chest straps, or even headbands and masks,
  while non-wearable devices are generally thin
  devices that you place next to your bed or slide
  under your sheet. You can even get smart
  mattresses that monitor your sleeping habits.
• Non-wearable devices mainly fall under two
  categories. They are Bedside Devices Bedside
  Sensors.
• Lets see about each of these devices,

4
Wearable Devices

• These devices are worn on the wrist or finger
  while sleeping. These devices usually record data
  about your movements and heart rate. They may
  also monitor your breathing patterns. Many of
  them are multifunctional. In addition to your
  food and activity logs, you can track your
  footsteps, heart rate, and calories burned.

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Bedside Devices

• These devices are placed near your bed. Most of
  the data they collect is related to your
  movements and breathing during your sleep.
  Furthermore, they may store information about the
  environment of your room, such as temperature,
  humidity, ambient noise, and light.

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Bed Sensors

• These devices are placed under the sheets or
  mattresses. They measure the movement and heart
  rate of the person. Some of these devices measure
  the room environment as well, such as temperature
  and humidity. Smart beds can also be used to
  track there is also a type of mattresses in which
  sensors will be integrated into them.

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How do they Track?

• First, lets understand the Data we collect from
  this Sleep Tracker.
• Normally we used to collect the below data from a
  Sleep Tracker.
• Your Heart Rate Rhythm
• Your Breathing Patterns
• Time Awake Time Sleeping
• Snoring
• Body Temperature
• Room Temperature Humidity
• Light Noise Level

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Lets Explore them

• Now lets explore a few ways in which these sleep
  tracking devices track your sleep.
• Accelerometers
• Heart Rate
• Respiratory Rate
• Environmental Factors

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Accelerometers

• Accelerometers are nothing but small motion
  detectors that are present inside your Sleep
  Tracker. In your sleep, these motion detectors
  will monitor record your movements. All these
  recorded activities will be analyzed with an
  algorithm that helps to estimate the sleep time
  quality.
• These Accelerometers can only track your sleep
  stages to an extent. For in-depth analysis, you
  need to visit a sleep lab where they will track
  your sleep patterns stages accurately. But
  these Motion Detectors are handy to carry they
  help us to track our health sleep to some
  extent.

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Heart Rate

• Normally our Heart Rate will vary on two
  conditions. The first one is when we are
  Physically active the second one is when we are
  resting.
• As you might know already, our Heart Rate will go
  high when we are physically active and it will
  become low when we are resting.
• For example, A well-trained athlete while running
  his Heart Rate will increase more than 100 Beats
  Per Minute. At the same time while resting his
  Heart Rate can become as low as 45 Beats Per
  Minute.

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Respiratory Rate

• During sleep, our Heart Rate Respiratory Rate
  mostly will not be in sync. But both these rates
  help us to determine the sleep stages because
  these rates have a close relationship with each
  sleep stage. As both these systems are controlled
  by our Autonomic Nervous System. As the most
  reliable metric for determining sleep disorders
  like snoring and sleep apnea, respiration is
  considered the most important physiological
  measure.

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Environmental Factors

• Each Sleep Trackers have their own unique sensors
  algorithms to monitor environmental factors.
  Among them lets see a few common factors.
• Some Sleep Trackers use microphones. These
  microphones are exactly like the ones that we
  have on our mobile phones. You will place these
  devices close to your bed to capture noise from
  the room also from the movements you make in your
  sleep.
• This feature will come in very handy if you are
  having difficulty getting sleep and making more
  movements (like changing your sleeping position
  frequently to fall asleep)

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Conclusion

• Technology is getting better every day. This
  Sleep Tracker will help professionals to plan
  their sleep schedules on their busy workdays. In
  case you have any significant issues like sleep
  apnea or chronic insomnia collect the data you
  collected from the sleep tracker show it to
  your doctor.
• Sleep tracking data cannot be used to diagnose
  sleep problems. The Sleep Tracking devices are
  not FDA-approved for diagnostic purposes.
• However, the information from these sleep
  tracking devices can help point your doctor in
  the right direction for diagnosing the underlying
  cause of your sleep problems.

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Thank you