A good night’s sleep is obviously essential for all of us to feel and perform at our best. But how do you determine what's wrong if you are always tossing and turning? Sleep monitors fit in there. Whether worn on your wrist, finger, head, or set by your bed, these smart devices can provide you genuine insights into your sleep patterns and enable you to create better bedtime routines. Having tested everything from smart rings to headbands for years, we’ve compiled the best sleep trackers of 2025 to enable you to wake up feeling really revitalized.

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A Sleep-Tracking Ring

Oura Ring 4

Price at Amazon

• Highly Accurate: One of the most precise sleep trackers tested.
• Advanced Sensors: Includes a 3D accelerometer (movement), NTC temperature sensor (body temp), and infrared PPG sensors (heart rate and breathing).
• Clear Graphs: Tracks total sleep time, time in bed, sleep efficiency, and resting heart rate each night.
• Sleep Stage Breakdown: Monitors REM, light, and deep sleep.
• Movement Detection: Tracks restlessness and wake-ups during the night.
• Auto Nap Tracking: Naps are automatically added to sleep scores.
• Smart Sleep Tips: Offers guidance based on sleep chronotype (e.g., morning or night person).
• Subscription Features: Full access to advanced insights for $6/month.
• Free Features: Basic Sleep, Readiness, and Activity scores included without a subscription, along with guided meditations.

A No-Subscription Ring

Ultrahuman Ring Air

Price at Amazon

Highly Accurate: Among the most reliable devices for tracking sleep stages and duration.

Advanced Sensors: Includes a motion-sensing IMU, PPG sensor for heart rate, and medical-grade temperature sensor.

Sleep Stage Charts: Clearly shows time spent in awake, REM, light, and deep sleep.

Detailed Sleep Score: The Sleep Index (out of 100) factors in sleep efficiency, restfulness, consistency, heart rate drop, temperature, and total sleep.

Health Insights:

• Charts for heart rate, heart rate variability, and temperature.
• Provides personalized suggestions like when to stop caffeine, get sunlight, and ideal sleep windows.

No Subscription Needed: Full app features included without a monthly fee.

Lightweight Design: Lighter than the Oura Ring, making it more comfortable for all-night wear.

Activity Tracking Limitations: While it can monitor workouts, the activity tracking feature is less intuitive.

A Wristband

Whoop 4.0 (Membership)

Price at Amazon

Design & Use:

• Worn in a cotton band roughly one inch above the wrist.
• Haptic motor, four photodiodes, five LED sensors on a screenless, unobtrusive device.

Model of Subscription

• With a $30/month or $239/year membership, device is free.
• Subscription opens up complete sleep tracking and biometric capabilities.

Sleep Tracking Tools:

• Monitors respiration rate, wakefulness, sleep quality, and duration.
• The Sleep Coach provides individualised sleep targets depending on daily recorded physical strain levels.
• Lets users record behaviours—last drink or caffeine consumption, for example—to encourage better habits.

Advice on wellness:

• Offers analysis on recovery and how daily routines influence sleep.
• Suggests rules that could seem harsh for people juggling lifestyle decisions.

Disadvantages:

• Some users might find no screen or battery indicator annoying.
• Sleep advice could go beyond what is reasonable for the habits of all users.

A Fitness Tracker

Garmin Epix Pro (Gen 2)

UP TO 32.05% OFF

Compatibility

• While most Garmin wearables have sleep tracking, watches with a Pulse Ox sensor—like the Epix Pro—offer Advanced Sleep Monitoring.

Sleep Monitoring Tools:

• Monitors restlessness, breathing, SpO2, and sleep phases.
• For best performance, users have to enter Sleep and Wake windows on the Garmin Connect app.
• Sleep data will be gathered only on the main Garmin device should several devices be in use.

Sleep Scoring System:

• Determines a Sleep Score from total sleep, stress levels, and duration.
• Ignores naps while calculating the Sleep Score.

Insights & Accuracy:

• Tends to overstate sleep by 30–60 minutes relative to Whoop and Oura trackers.
• Using HRV changes to highlight restlessness, it finds disturbances brought on by caffeine or alcohol more efficiently.

If You Have an iPhone

Apple Watch Series 9

Price at Amazon

Device Compatibility:

• Available on Apple Watch Series 4 and newer.
• Newer models can also monitor temperature and blood oxygen levels.

Tracking Features:

• Tracks sleep stages: Awake, REM, Light, and Deep.
• Logs time in bed, sleep duration, heart rate, respiratory rate, and average wrist temperature.
• Data is accessible through the iPhone Health app.

User Experience:

• Includes Wind Down features to support a consistent bedtime routine.
• Offers sleep goals and discreet alarms that vibrate to avoid waking a partner.
• Charts available over days, weeks, and months for trend analysis.

Limitations:

• No sleep score provided.
• Sleep data is presented in broad summaries—limited depth compared to other devices.
• Graphs can be confusing, and detailed analysis is minimal.

If You Have an Android

Google Pixel Watch 3

UP TO 12.5% OFF

Compatibility:

• Works with any Android phone—no feature restrictions.
• Requires Fitbit Premium ($10/month) for advanced insights.

Tracking Features:

• Provides a Sleep Score (0–100).
• Tracks sleep stages: Awake, REM, Light, and Deep.
• Measures blood oxygen saturation (SpO2) during sleep.
• Offers nap detection, though accuracy may vary.

User Experience:

Small and lightweight, comfortable to wear overnight.

Fitbit app offers a clear and easy-to-read sleep dashboard.

With Fitbit Premium, users get access to:

• Long-term sleep trends
• Heart rate during sleep
• Sleep consistency
• Restlessness tracking
• Daily Readiness score

Limitations:

• Some sleep insights are locked behind a subscription.
• Nap detection is not always reliable.

An OK Mat for Under the Mattress

Withings Sleep Tracking Mat

Price at Amazon

Design & Setup:

• A non-wearable sensor mat placed under the mattress (under chest area).
• Initial calibration required, but setup is quick and easy.
• Requires a power outlet—no charging needed.

Tracking Features:

• Automatically tracks movement, breathing, heart rate, and snoring.
• Detects potential sleep apnea based on breathing patterns.
• Records noises during sleep (like snoring).

Sleep Data & Scoring:

Data appears in the Withings Health Mate app.

Sleep stages shown as: Awake, REM, Light, Deep.

Provides a Sleep Score (0–100) based on:

• Total sleep time
• Depth of sleep
• Sleep consistency
• Interruptions
• Time to fall asleep
• Time to wake up

Limitations:

• Can misinterpret lying still (e.g., watching TV or reading) as sleep.
• May overestimate light sleep, especially during awake moments.
• Not ideal for people with insomnia or irregular bedtime habits.