The best sleep tracker is the one you'll actually wear, or not wear, every night. Oura, Whoop and Apple Watch are the big three, and each suits a different kind of person. Two more options skip your wrist and finger altogether.
Some links in this guide go to Amazon. If you buy through them we may earn a commission, at no extra cost to you. As an Amazon Associate we earn from qualifying purchases.
Quick picks
- Best overall for sleep: Oura Ring 4: the most comfortable tracker to wear every night, built around sleep.
- Best for recovery and training: WHOOP 5.0: a membership band that ties your sleep to recovery and training.
- Best for iPhone users: Apple Watch Series 12: the best all-rounder if you already use an iPhone.
Sleep trackers compared
| Tracker | Type | Best for | Typical price |
|---|---|---|---|
| Oura Ring 4 | Smart ring | Comfortable, sleep-focused tracking | $349–$499 |
| WHOOP 5.0 | Screenless band | Athletes and data lovers | $199–$359 a year |
| Apple Watch Series 12 | Smartwatch | One device for everything | See Amazon |
| Garmin Index Sleep Monitor | Upper-arm band | Sleep tracking without a watch or ring | $150–$170 |
| Withings Sleep Analyzer | Under-mattress pad | Hands-off tracking and snoring | $100–$200 |
Prices are typical ranges and change often. Check Amazon for today's price.
The 5 best sleep trackers
Best overall for sleep
1. Oura Ring 4
- Sleep stages, HRV and temperature
- Up to 8 days of battery
- Membership about $6 a month
Oura is built around sleep first. The ring estimates sleep stages, resting heart rate, heart-rate variability and temperature trends, and the app turns them into a readiness score and long-term trends.
A ring is easier to forget about in bed than a watch, and the battery lasts most of a week. You'll need the membership for most features, and Oura's sizing kit before you buy.
Buy it if
Sleep is the main thing you want to track, and comfort matters.
Skip it if
You want a screen, notifications or detailed workout tracking.
Check price on AmazonUsually $349–$499
Best for recovery and training
2. WHOOP 5.0
- Membership includes the band
- 14+ day battery
- Sleep need and sleep debt
Whoop sells a membership rather than a device: the band comes with it. It tracks sleep stages and works out how much sleep you need based on your strain and recovery, which makes it popular with people who train hard.
There's no screen, and the battery lasts around two weeks. The higher membership tiers add features like ECG and blood pressure insights.
Buy it if
You train regularly and want sleep tied to recovery.
Skip it if
You don't want an ongoing subscription.
Check price on AmazonUsually $199–$359 a year
Best for iPhone users
3. Apple Watch Series 12
- Sleep stages and Sleep Score
- Sleep apnea notifications
- Full smartwatch
If you already want a smartwatch, Apple Watch tracks sleep well enough for most people. Recent versions of watchOS show sleep stages and a nightly Sleep Score, and the watch can flag possible signs of sleep apnea.
The catch is battery: you'll need to charge it every day, so you have to find time outside of bed to top it up.
Buy it if
You have an iPhone and want a smartwatch that also tracks sleep.
Skip it if
You use Android, or don't want to charge something every day.
Best armband
4. Garmin Index Sleep Monitor
- Worn on the upper arm
- Sleep score and HRV
- Up to 7 nights of battery
Garmin's Index Sleep Monitor is a soft band you wear on your upper arm only at night. It tracks sleep stages, sleep score and heart-rate variability, then syncs to the Garmin Connect app, with or without a Garmin watch.
Great if you don't want to sleep in a watch or ring.
Buy it if
You find watches and rings uncomfortable in bed.
Skip it if
You want daytime tracking from the same device.
Check price on AmazonUsually $150–$170
Best tracker you don't wear
5. Withings Sleep Analyzer
- Goes under the mattress
- Tracks snoring
- No charging
The Withings pad slides under your mattress and tracks sleep cycles, heart rate and snoring without you wearing anything. Set it up once and forget it.
It tracks one side of the bed and works with most mattresses.
Buy it if
You want sleep data without wearing a thing.
Skip it if
You want activity tracking too.
Check price on AmazonUsually $100–$200
Oura vs Whoop vs Apple Watch
- Oura is the most sleep-focused and the most comfortable to wear in bed. Pick it if sleep is your main interest.
- Whoop frames sleep around recovery and training. Pick it if you exercise hard and like a membership model.
- Apple Watch is the best all-round smartwatch, with good sleep tracking. Pick it if you want one device for everything and have an iPhone.
All three need you to accept some ongoing cost (Oura and Whoop through memberships) or daily charging (Apple Watch).
How accurate are sleep trackers?
Consumer trackers are reasonably good at estimating total sleep time and noticing changes over weeks. They're less precise at splitting a night into light, deep and REM sleep, compared with a sleep lab. Use them for trends, like how late caffeine or alcohol shows up in your nights, rather than judging a single night.
If watching your scores makes you anxious about sleep, take a break from them. And if a tracker suggests problems like frequent breathing disruptions, talk to a doctor rather than relying on the app.
For a no-device starting point, our sleep cycle calculator and REM sleep calculator estimate your nights from your bedtime.
Have a dream of your own?
Write what you remember and get a clear reading.
How we picked
Every tracker here is sold on Amazon US and comes from an established brand. We covered the three most popular wearables plus two alternatives for people who don't want to wear a ring or watch. We chose from product details and published features rather than lab testing.
FAQ
Which is better for sleep, Oura or Whoop?
Oura is more comfortable and sleep-focused. Whoop is better if you want sleep tied to training and recovery.
Is Apple Watch good for sleep tracking?
Yes, for most people. Recent watchOS versions show sleep stages and a Sleep Score. The main downside is charging it every day.
Do I need a subscription for a sleep tracker?
Oura and Whoop need memberships for most features. Apple Watch, Garmin and Withings don't require one for core sleep tracking.