The 4 Best Sleep Trackers in 2024

Oct 10, 2023
Fact Checked
These devices can monitor your sleep, heart rate, movement, blood oxygen levels, and more.
Written by: Mikayla Morell
Medical Reviewer: Chester Wu, MD
Best Overall
Oura Ring
Comfortable and easy to wear
Battery lasts up to seven days
Best Overall
Best Sleep Aid
Muse S (Gen 2)
No subscription required to use
Great customer reviews
Best Budget-Friendly Option
SleepOn Go2sleep
Most affordable option
No subscription required to use
Best Warranty
Battery lasts for five days
Free one-month trial period with a pre-owned device

Best Sleep Trackers: Key Takeaways

Sleep is the foundation of good health. But while the Centers for Disease Control and Prevention (CDC) recommends adults should get seven or more hours of sleep each night, one-third of us do not. [1]How Much Sleep Do I Need? Centers for Disease Control and Prevention. Available on the internet at [2]Sleep and Sleep Disorders. Centers for Disease Control and Prevention. Available on the internet at

A device to track your sleep can help you understand your patterns and provide the sleep data you need to get a good night’s rest. Sleep trackers can track your sleep and measure your heart rate, body movement, body temperature, and more. You can wear some trackers on your body, and others you can place under your mattress.

If you want to learn more about your sleep and work toward better sleep hygiene, find out which tracker is right for you based on our review of four top devices.

A quick look at the best sleep trackers in 2023

Why you can trust our review of the best sleep trackers

Our Reviews Team recommends products and services we believe provide value in the lives of our readers. We carried out in-depth research on sleep trackers to give you the most accurate review. To make our selections, we:

Compare the best sleep trackers in 2023

Provider Type of tracker Price (device only) Subscription Main features Visit Site
Ring $299–$609 Required, $5.99/mo Tracks sleep, activity, menstrual cycle, and readiness Visit Site
Headband $399.99–$444.98 Optional, $12.99/mo or $49.99/year Personal meditation and sleep coach; detects heart rate, brain activity, posture, and breathing Visit Site
Ring and fingertip holder $99–$129 No subscription Monitors sleep, heart rate, heart rate variability, and blood oxygen Visit Site
Wristband $30–$399 Required; monthly ($30/mo), 12 months ($239), or 24 months ($399) Monitors sleep, strain, recovery, health, and stress Visit Site

Best sleep trackers in 2023

Oura Ring
Best Overall
Why we like it

The Oura Ring (3rd generation) is a smart ring to track your sleep, activity, and readiness score. The readiness score is a measure of how prepared you are to take on the day’s stressors, according to Oura. It’s one of the most comfortable sleep-tracking devices on our list and is less noticeable than a watch or headband.

Pros & Cons
Pros Comfortable and easy to wear Battery lasts up to seven days Can purchase an additional warranty Cons Customer reviews report the device malfunctions or stops working after the year-long warranty period Must have a subscription to use the device

Price: $299 to $609 depending on the style, finish, and warranty

Subscription: Required, $5.99/mo (the first month is free with the purchase of the ring)

Warranty: One-year protection plan included with the device, can purchase an additional two-year ($45) or three-year ($60) protection plan

Battery life: Up to seven days

Payment options: Credit card (Visa, Mastercard, or American Express), PayPal, or Affirm

Additional information

The starting cost for the Oura Ring is $299 and can go up to $609, depending on which style, finish, and warranty option you choose. While you need a subscription to use the Oura Ring, the membership cost is $5.99 per month, which is less than the other devices on this list requiring a subscription.

The three daily scores Oura provides can help you understand your health and find out where to adjust your routine.

Your sleep score accounts for how long you were in each sleep stage, your wake times, your heart rate, and your body temperature. It can also sense if you are experiencing breathing disturbances like obstructive sleep apnea (OSA). Over time, Oura will learn more about your sleep patterns and be able to provide you with personalized guidance on how to get better rest.

The readiness score will give you an understanding of your overall health and how ready you are for the day ahead. The activity score will tell you whether you are hitting your personal movement goals.

In addition to sleep, Oura also tracks the following:

  • Heart rate
  • Activity level
  • Training frequency
  • Heart rate variability (HRV)
  • Recovery time
  • Activity goals based on your readiness score
  • Steps
  • Menstrual cycle

Oura Ring earned our “Best Overall” rating because it’s comfortable and easy to wear, its membership fee is lower than others, and the science behind the device. A section on the website titled “Research and Validation” cites academic research to establish the accuracy of the Oura Ring’s features.

study published in 2022 found the second-generation Oura Ring performed better than the Apple Watch and Garmin devices at detecting when the user woke up during the night. [3] In the study, researchers acknowledged the difficulty for sleep trackers to accurately detect when people wake based on movement alone. Oura is more accurate—it not only considers movement but also factors in metrics like heart rate and heart rate variability to determine when the wearer is awake.

Customer Service

You can reach Oura customer service via:

According to the website, the customer support team is available seven days a week. When we submitted a form, we found the response was prompt, but it did not thoroughly answer our questions.

Customer Reviews

Overall, Oura does not rate well in online reviews. Oura has a rating of 1.8 out of 5 on Trustpilot with over 900 reviews. On BBB, Oura has a F rating and a score of 1 out of 5 stars out of more than 80 customer reviews.

Some reviews found Oura’s customer service was prompt and helpful, even when helping customers return their devices. Many reviews also stated the Oura ring did improve their sleep. Negative reviews reported difficulties with customer service, saying the support team didn’t resolve their issues or wouldn’t replace the device without a warranty.

Muse S (Gen 2)
Best Sleep Aid
Why we like it

The Muse S (Gen 2) is a smart headband that provides meditation and sleep coaching. We chose Muse S as our “Best Sleep Aid” because this device tracks your sleep and also offers specific guided meditations to help you fall asleep.

Pros & Cons
Pros Doesn’t require a subscription to use Results backed by research Great customer reviews Cons Battery life is 10 hours The device is only covered under a one-year warranty

Price: $399 for the device only, or $444.98 for the device and one-year premium subscription

Subscription: Optional, $12.99/mo or $49.99/year

Warranty: One year

Battery life: 10 hours

Payment options: Credit card (Visa, MasterCard, American Express), PayPal, Google Pay, Apple Pay, Shop Pay

Additional information

The Muse S uses EEG (electroencephalogram) sensors to detect brain activity. A typical EEG test uses electrodes to detect abnormalities in your brain activity. [4] Similarly, the Muse S uses these sensors to gather data from your brain activity and log how long you spend in each stage of sleep. The device also detects sleep intensity and your sleeping positions. You can view this information and your overall sleep score on the Muse Meditation app, which can be downloaded on the App Store and Google Play.

The EEG sensors help the Muse S (Gen 2) provide personalized meditations in the form of weather sounds based on your brain activity. If the weather gets louder—or you hear waves, wind, or rain—it signals your mind is active and wandering. These cues are meant to direct your focus back to your breathing. You will know your mind is clear and calm when you hear quiet, soothing nature sounds. If you reach a relaxed mindset for longer than five seconds, you will hear birds chirping.

According to recent research, the Muse S provides accurate and detailed health information[5] While other devices—like wristbands and rings—can monitor sleep, they do not consider brain activity. One study notes devices with direct access to brain activity, like the Muse S, may offer more insight into sleep patterns than other devices. [6] The study also points out the Muse S can provide a convenient, low-cost alternative to monitoring at a sleep clinic.

Customer Service

You can reach Muse customer support by:

  • Live chat, available Monday through Friday from 9 a.m. to 5 p.m. ET
  • Contact form on the website

Our Reviews Team found Muse customer support went above and beyond to answer all our questions.

Customer Reviews

Muse has an impressive Trustpilot score of 4 out of 5 stars based on 900+ customer reviews. Over 63% of reviewers gave 5-star ratings. Customers’ positive reviews shared their improved sleep and feeling more calm and focused after using the device. Customers also say customer service is prompt, helpful, and supportive.

Some negative reviews reported delays with receiving their device. The Muse website states orders ship within one to two business days and should be delivered three to five business days after shipping. Delivery may take longer for residents outside Canada, the United States, and the United Kingdom.

Some customers also reported their devices stopped working after their warranty period ended. Note the Muse S is only covered under a one-year warranty plan.

SleepOn Go2sleep
Best Budget-Friendly Option
Why we like it

The SleepOn Go2sleep device is very similar to the Oura Ring—a wearable ring to track sleep, heart rate, heart rate variability, and blood oxygen levels—but it doesn’t require a monthly fee or have as many features. The Go2sleep can also be worn on the fingertip with a silicon fingertip holder called the Go2sleepSE.

Pros & Cons
Pros Most affordable option Doesn’t require a subscription Cons Battery life is only two nights Customer reviews are limited

Price: Ranges from $99 to $129

Subscription: No subscription

Warranty: One year

Battery life: Two days

Payment options: Credit card (Visa, Mastercard, American Express), PayPal

Additional information

The Go2sleep is designed for use only when you’re sleeping. It provides you with a minute-by-minute sleep report providing your:

Recent research compared Go2sleep with polysomnography (PSG), the gold-standard sleep study used to diagnose disorders like sleep apnea. [7] The research concluded Go2sleep accurately detects sleep stages, sleep duration, and heart rate, but underestimated measurements for AHI and oxygen blood levels.

If you want a device to more accurately measure AHI or blood oxygen levels, consider the Go2sleepSE. A study published in 2021 found smart rings measuring blood oxygen levels at the fingertip, like the Go2sleepSE, are more accurate than smartwatches or bands. This is because they are similar in style to pulse oximeters, devices health care providers often use to measure blood oxygen levels. [8]

Customer Service

You can contact SleepOn customer service via:

Customer Reviews

The customer reviews of SleepOn are limited. On Trustpilot, the company has a rating of 2.4 out of 5 based on only seven reviews. Some customers reported their items arrived late or not at all. On the BBB, SleepOn has a D+ rating with only one customer complaint and no reviews.

Best Warranty
Why we like it

The WHOOP 4.0 is a wristband to monitor your sleep, strain, recovery, and stress levels. We chose WHOOP 4.0 for “Best Warranty” because of the lifetime warranty, prompt and thorough customer service, and five-day battery life on a single charge.

Pros & Cons
Pros Lifetime warranty Free one-month trial period with a pre-owned device Battery lasts for five days Cons Requires a subscription Must finish your initial commitment period before canceling the subscription

Price: $30 to $399, cost of the device is included in the subscription

Subscription: Required, can choose between a 12-month subscription for $19.92/month (charged $239 upfront), a 24-month subscription for $16.63/month ($399 upfront), or a monthly subscription (12-month minimum commitment) for $30/month ($30 upfront)

Warranty: Lifetime (to be eligible, you must have an active membership with no outstanding balance or unpaid fees)

Battery life: Five days

Payment options: Credit card (Visa, American Express, Mastercard, Discover)

Additional information

WHOOP 4.0 also has research to back up the accuracy of the device. A study published in 2020 found WHOOP accurately measured sleep and cardiorespiratory variables and even improved sleep quality. [9]

In addition to sleep metrics, the WHOOP 4.0 also detects:

  • Cardiovascular and muscular load
  • Activity type and level
  • Strength training impact
  • Heart rate variability
  • Heart rate
  • Respiratory rate
  • Blood oxygen levels
  • Skin temperature
  • Trends in recovery, sleep, and stress

If you’re unsure about using the WHOOP 4.0, the brand offers a free one-month trial where you can test out a pre-owned device before committing to the purchase. Remember, when you sign up for WHOOP, you agree to at least a 12-month commitment period.

Customer service

Get in contact with WHOOP support via:

  • Live chat on the website
  • Phone (833-948-0566)

Our Reviews Team found it easy to reach WHOOP customer service. The representatives responded promptly and thoroughly through the live chat and even provided us with research on the effectiveness of the devices.

Customer reviews

On Trustpilot, WHOOP received a rating of 1.7 out of 5 based on 259 reviews. On BBB, Whoop has a 1.3 out of 5-star rating based on 32 customer reviews.

Some reviewers reported reaching customer service and canceling their membership after the 30-day trial was difficult. Positive reviews claimed the device helped improve their sleep.

How do sleep trackers work?

Sleep trackers use various techniques to record sleep habits. Each device type may work in different ways and use a combination of sensors and technologies.


Actigraphy measures your activity and sleep using an accelerometer. [10]Cleveland Clinic. Actigraphy (Actigraph). Aug. 16, 2023. Found on the internet at Accelerometers detect movement and sense things like vibrations or speed of movement. When you move your smartwatch around while you sleep, the accelerometer records those movements.

Heart rate and body temperature

Your heart rate and body temperature fluctuate during each sleep phase. [11]Harvard Health Publishing. How Does Sleep Affect Your Heart Rate? Jan. 29, 2021. Found on the internet at As you fall asleep, your body functions slow down. During light sleep, your heart rate settles to a resting pace, your body temperature drops and your muscles relax. During deep sleep, your heart rate slows 20% to 30% below your resting heart rate. Then, during the REM sleep, your heart rate may fluctuate depending on your dreams.

Sleep-tracking devices often detect your heart rate and body temperature to determine your sleep phase.


Some trackers use EEG sensors to detect brain activity while you sleep. For example, the Muse S (Gen 2) plays meditative sounds at an intensity to correlate with your brain activity.

What do sleep trackers measure?

Sleep trackers measure different body functions while you sleep. While every device is different, most devices track: [12]Johns Hopkins Medicine. Do Sleep Trackers Really Work? Found on the internet at

Types of sleep trackers

Sleep trackers can be separated into two categories: wearable and non-wearable (under-the-mattress) trackers. Wearable smart devices are:

If you’re uncomfortable wearing a device while you sleep, non-wearable sleep trackers may be a better fit. But, there are some benefits to a wearable device.

“The advantage of wearables is that it tracks an individual’s health even when they are not in bed,” said Sairam Parthasarathy, MD, professor and chief of the Division of Pulmonary, Allergy, Critical Care and Sleep Medicine department at the University of Arizona Tucson.

Wearable sleep trackers may also be more accurate, but more research is needed to know for sure. “In general, the wearables are likely superior to non-wearable-based measures, but unless we perform head-to-head comparisons, we will not know for sure,” said Parthasarathy.

What to consider when purchasing a sleep tracker

The best device for you will depend on various factors. When purchasing a sleep tracker, you should consider:

How we chose the best sleep trackers of 2023

Based on our expert consultations and research, we determined the following factors to be important when shopping for a sleep tracker:

We selected each device based on these factors to ensure each brand and model is appropriate for NCOA readers.

Bottom line

Sleep trackers monitor your sleep to help you understand your patterns and other aspects of your health. Sleep trackers may record your heart rate, heart rate variability, blood oxygen levels, body temperature, and more. These devices can be worn on your body or placed under your mattress. Before purchasing a sleep tracker, make sure you consider the cost, accuracy, battery life, and type.

Sleep trackers cannot diagnose a sleep disorder. If you are concerned about your sleep patterns or think you may have a sleep disorder, talk with your health care provider.

Frequently asked questions

Sleep trackers use various sensors and technologies to track your nightly body functions and patterns. These metrics—like heart rate, body temperature, and movement—can provide information about the quality and quantity of your sleep.

If you want to learn more about how much you sleep, how long you spend in different sleep stages, or if you wake up in the middle of the night, a tracker can help you better understand your habits. But if you want to diagnose a sleep disorder, talk with your doctor about undergoing a sleep study.

Have questions about this review? Email us at


  1. Centers for Disease Control and Prevention. How Much Sleep Do I Need? Found on the internet at
  2. Centers for Disease Control and Prevention. Sleep and Sleep Disorders. Found on the internet at
  3. Miller DJ, et al. A Validation of Six Wearable Devices for Estimating Sleep, Heart Rate, and Heart Rate Variability in Healthy Adults. Sensors. August 2022. Found on the internet at
  4. Johns Hopkins Medicine. Electroencephalogram (EEG). Found on the internet at
  5. De Fazio R, et al. Methodologies and Wearable Devices to Monitor Biophysical Parameters Related to Sleep Dysfunctions: An Overview. Micromachines. August 2022. Found on the internet at
  6. Jaoude MA, et al. Automated Sleep Staging on Wearable EEG Enables Sleep Analysis at Scale. 2023 11th International IEEE/EMBS Conference on Neural Engineering (NER). May 2023. Found on the internet at
  7. Zambrano Chacon LA, et al. Sleep-Tracking Device Compared to Polysomnography for Respiratory Events and Sleep Architecture Analysis. European Respiratory Journal. 2022. Found on the internet at
  8. Zhang Z, et al. The Challenges and Pitfalls of Detecting Sleep Hypopnea Using a Wearable Optical Sensor: Comparative Study. Journal of Medical Internet Research. July 2021. Found on the internet at
  9. Berryhill S, et al. Effects of Wearables on Sleep in Healthy Individuals: A Randomized Crossover Trial and Validation Study. Journal of Clinical Sleep Medicine. Found on the internet at
  10. Cleveland Clinic. Actigraphy (Actigraph). Aug. 16, 2023. Found on the internet at
  11. Harvard Health Publishing. How Does Sleep Affect Your Heart Rate? Jan. 29, 2021. Found on the internet at
  12. Johns Hopkins Medicine. Do Sleep Trackers Really Work? Found on the internet at
Mikayla Morell is a health and wellness writer who is passionate about spreading reliable, accessible, and informative health information to people of all backgrounds and identities.
Dr Chester Wu
Chester Wu Medical Reviewer
Dr. Chester Wu is board certified in Psychiatry and Sleep Medicine, training at Baylor College of Medicine and Stanford University School of Medicine, respectively. He has since established his own private practice in Houston, TX where he provides psychiatric and sleep medicine services.
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