
Tracking oxygen levels during sleep is important for people with sleep apnea, lung disease, or other breathing difficulties. Normal oxygen levels during sleep range from 96% to 100%, and levels below 88% indicate a condition called hypoxemia. Doctors and nurses typically measure blood oxygen levels using a pulse oximeter, a small, painless clip placed on a person's fingertip. These devices can also be used at home and are widely available for purchase online or at pharmacies. They record blood oxygen levels continuously over time and can store these measurements while the user sleeps. Some oximeters feature a vibration alarm that wakes the user up to change their position and improve breathing if oxygen levels drop below a certain threshold.
| Characteristics | Values |
|---|---|
| Normal oxygen levels during sleep | 96% to 100% |
| Oxygen levels indicating hypoxemia | Below 88% |
| Devices | Pulse oximeter, blood oxygen monitor, sleep oxygen monitor, sleep pulse oximeter, sleep tracker |
| Device placement | Fingertip, wrist |
| Additional features | Vibration alarm, sleep report, raw data, blood oxygen and pulse rate display, blood oxygen and pulse rate recording, blood oxygen and pulse rate tracking, data analysis and trends |
Explore related products
What You'll Learn

Overnight pulse oximetry tests
An overnight pulse oximetry test is a commonly used screening test that evaluates blood oxygen levels. Your healthcare provider may recommend one if they suspect you have a sleep disorder like obstructive sleep apnea. This test is also used to qualify for home oxygen use. It is a simple test that can easily be done at home. It provides basic information that may be useful in evaluating whether you have a common sleep disorder, like sleep apnea.
The test typically involves applying a plastic clip called an oximeter over the end of your finger. This clip may be held in place with a piece of tape, but it is not painful to have on and can be removed easily. Within the overnight oximeter sensor is a red light that shines through your finger or the surface of your skin. On the other side, or sometimes parallel to the emitting light, is a sensor that can measure your pulse (or heart rate) and the oxygen content of your blood. The latter is determined by the colour of your blood, which will vary with the amount of oxygen it contains. Highly oxygenated blood is redder, while blood that is poor in oxygen is bluer. This changes the frequency of the light wavelength that is reflected back to the sensor.
Pulse oximetry data is recorded continuously over the course of the night and will result in a graph. Your medical provider will be able to review it and determine if there are abnormal drops in your oxygen levels called desaturations. This may happen recurrently in sleep apnea. Overnight pulse oximetry is not perfect, so you will likely need additional tests like polysomnography before your healthcare provider will be able to give you a diagnosis.
There are several devices available on the market that can track blood oxygen levels and pulse rate overnight. These include the EMAY Sleep Oxygen Monitor, the LOOKEE Wrist Sleep Monitor, and the Innovo Fingertip Pulse Oximeter. These devices can record data for up to 8 hours and provide detailed information and summary reports.
Sleep Tracking: Understanding the Benefits of a Good Night's Rest
You may want to see also
Explore related products

Sleep trackers
One example of a sleep tracker is the EMAY Sleep Oxygen Monitor, which can track continuous blood oxygen levels and pulse rate overnight. It provides detailed sleep reports and raw data, including maximum, average, and minimum blood oxygen levels and heart rate. The device clamps onto the finger like those used in hospitals and clinics, and users have noted that it stays in place securely without any additional tape or bandages. The EMAY Sleep Oxygen Monitor also features a large, rotating digital LCD display, making it easy to read the results.
Another option is the LOOKEE® Wrist Sleep Oxygen Monitor, which features a patented Finger Ring Sensor that frees the finger from the constraining clip of traditional fingertip pulse oximeters. This device also tracks blood oxygen levels and heart rate, and it includes a vibration alarm that gently alerts the user when their blood oxygen levels drop below a preset threshold. This prompt helps the user adjust their sleeping position to improve breathing and reduce the risk of sleeping with low blood oxygen levels.
In addition to these devices, there are other wrist-based sleep trackers available, such as the Wellue SleepU Wrist Pulse Oximeter, which also features vibration alerts for low oxygen levels. These sleep trackers provide detailed reports and insights into sleep patterns, allowing users to better understand their sleep quality and take appropriate action if needed.
It is important to note that while these sleep trackers can be useful for monitoring blood oxygen levels and identifying potential issues, they are typically intended for general wellness use and not for medical diagnosis or treatment. If you suspect you have a sleep disorder or other health condition, it is recommended to consult a healthcare professional for proper evaluation and treatment.
Fenix 3 Sleep Tracking: Update and Track Your Sleep
You may want to see also
Explore related products

Sleep oxygen monitors
Pulse Oximeters
Pulse oximeters are small, clip-on devices that can be placed on the fingertip. They are typically used by doctors and nurses to measure blood oxygen levels. Pulse oximeters can be worn during sleep to record blood oxygen levels continuously. They are widely used and can be purchased online.
Some sleep oxygen monitors come with built-in recording capabilities, allowing users to track blood oxygen levels and pulse rates overnight. These devices can provide detailed sleep reports and raw data, which can be downloaded and shared with physicians. They are often compatible with mobile apps, enabling easy data access and monitoring.
Wrist Pulse Oximeters
Wrist pulse oximeters are wearable devices designed for comfort during sleep. They monitor oxygen saturation levels, pulse rate, and sleep cycles. Some wrist oximeters offer mobile app compatibility, providing reporting and monitoring functions, data storage, and alarms for low oxygen levels. These devices are lightweight, compact, and suitable for continuous monitoring of oxygen levels at home or on the go.
LOOKEE® Wrist Sleep Oxygen Monitor
The LOOKEE® Wrist Sleep Oxygen Monitor is a device that tracks blood oxygen saturation levels, heart rate, and motion. It features a vibrating alarm that gently vibrates when oxygen levels drop below a preset threshold, indicating the need to change sleeping positions to improve breathing. This monitor helps reduce the risk of sleeping with low oxygen levels and minimizes disturbance to sleep partners.
OxyKnight® Watch Lite
The OxyKnight® Watch Lite is a lightweight and compact wrist oximeter that continuously monitors oxygen saturation levels, pulse rate, and sleep cycles. It connects to a mobile app, providing detailed reports, easy monitoring, and alarms for low oxygen levels. The soft, flexible fingertip cup and adjustable wrist strap ensure comfort during sleep.
It is important to note that while these devices can provide valuable insights into oxygen levels during sleep, they are not a substitute for medical advice or diagnosis. If you have any concerns or persistent symptoms, it is recommended to consult with a healthcare professional.
iWatch 3: Can It Track Sleep?
You may want to see also
Explore related products

Oxygen saturation levels
Overnight pulse oximetry is a commonly used screening test for sleep disorders and can be useful in identifying people who require further testing. It is often recommended for those suspected of having a sleep disorder, such as sleep apnea, or for those who need to qualify for home oxygen use. The test is non-invasive and involves placing a plastic clip called an oximeter over the fingertip.
Some oximeters also come with additional features, such as vibration alerts, that can gently wake the user and prompt them to change their sleeping position if their oxygen levels drop below a certain threshold. This helps to improve breathing and reduce the risk of sleeping with low oxygen levels. These devices can also track other metrics such as heart rate and body movements, providing detailed insights into sleep patterns.
Wyze Watch: Tracking Sleep and Providing Insights
You may want to see also
Explore related products

Sleep disorders
Sleep-related hypoxemia, or low blood oxygen levels during sleep, can be a sign of a sleep disorder or an underlying medical condition. Normal blood oxygen levels during sleep typically range from 96% to 100%. Levels below 93% are considered abnormal, and anything at or below 88% is dangerously low and can lead to serious health issues.
To diagnose sleep disorders like OSA, a sleep study, or polysomnography, is often conducted in a specialized facility. This involves measuring multiple body parameters, including blood oxygen levels, brain waves, heart activity, leg movements, eye activity, and breathing patterns.
One common method for tracking blood oxygen levels during sleep is through the use of a pulse oximeter, a small, painless clip typically placed on the fingertip. These devices can continuously record blood oxygen levels and provide detailed data that can be useful for medical evaluation and treatment decisions.
Additionally, sleep oxygen monitors, such as the EMAY Sleep Oxygen Monitor or the LOOKEE Wrist Sleep Oxygen Monitor, are available for at-home use. These devices track blood oxygen levels and pulse rate overnight and provide sleep reports and raw data. They can be helpful tools for monitoring nighttime oxygen levels and identifying potential sleep disorders or breathing issues.
Galaxy's Sleep Tracking: Unraveling the Science of Sleep
You may want to see also
Frequently asked questions
Normal oxygen levels during sleep range from 96% to 100%. However, there is no universal consensus on a standard normal blood oxygen level. Levels below 88% indicate a condition called hypoxemia.
You can track your oxygen levels during sleep by using a sleep oxygen monitor. These devices are widely available and can be purchased online or at pharmacies. They are usually small, painless clips placed on a person's fingertip.
If you notice low oxygen levels during sleep, you should consult a healthcare professional. They may recommend additional tests, such as polysomnography, to evaluate your breathing and identify any underlying conditions, such as sleep apnea or lung disease.











































