Best Sleep Tracker Apps in 2026 (iPhone & Apple Watch)
Sleep is the foundation of recovery, weight management and mood, and it is one of the easiest things to track. The hard part is choosing an app: do you need a watch? Is Apple's built-in tracking enough? And which app actually helps you sleep better, not just count hours? It matters: in our data, only about a third of Apple Watch wearers average the recommended 7 hours.
This guide compares the best sleep tracker apps for iPhone and Apple Watch, with and without a wearable. Prices were checked on the US App Store on September 29, 2026.
Quick answer
- Best free option: Apple Sleep and Sleep Score, built into your Apple Watch
- Best one-time purchase for detailed sleep data: AutoSleep
- Best for sleep connected to recovery and body progress: Bodly
- Best without a watch: Sleep Cycle
Comparison table
| App | Price | Needs a watch? | Best at |
|---|---|---|---|
| Apple Sleep + Sleep Score | Free (built in) | Yes, Apple Watch | A simple nightly score and sleep stages |
| AutoSleep | $8.99 one-time | Apple Watch (Watch app optional) | Detailed automatic tracking, sleep bank, readiness |
| Bodly | Free (Bodly Pro optional) | Apple Watch for sleep data | Sleep score and sleep bank next to recovery, strain, calories and body progress |
| Sleep Cycle | Free, Premium subscription | No, uses iPhone microphone | Smart alarm and snoring detection without a watch |
The best sleep tracker apps
1. Apple Sleep and Sleep Score: best free option
If you have an Apple Watch, start here. Apple's Sleep app tracks your sleep stages (REM, core and deep), and since watchOS 26, it gives each night a Sleep Score out of 100 based on:
- duration against your sleep goal (50 points)
- bedtime consistency over recent nights (30 points)
- interruptions, meaning how often and how long you wake up (20 points)
It works on Apple Watch Series 6 and later, SE 2 and later and all Ultra models. It is simple and free, but it does not tell you much about what to do with the number.
Choose it if you want a free, no-setup sleep score.
2. AutoSleep: best one-time purchase for sleep detail
AutoSleep has been a favorite of Apple Watch owners for years. It tracks your sleep automatically, keeps a sleep bank of the hours you owe, gives a readiness indicator and shows heart rate, blood oxygen and respiration details. It costs $8.99 once, with no subscription.
Choose it if you love detailed sleep data and prefer paying once.
3. Bodly: best for sleep connected to everything else
Good sleep is not an end in itself. It is what lets you recover, train and manage your weight. Bodly reads your Apple Watch sleep data from Apple Health and gives you a daily sleep score plus a sleep bank that tracks the sleep you still owe your body, right next to your recovery, strain, energy and stress scores.
It also goes beyond sleep and recovery apps entirely, with AI photo calorie tracking, weight trend, body measurements and progress photos, so you can see how your sleep affects your appetite, training and results. The daily scores are free.
Choose Bodly if you want to see how sleep connects to recovery and body progress in one app. Skip it if you only want sleep data and nothing else.
4. Sleep Cycle: best without a watch
Sleep Cycle uses your iPhone's microphone to analyze sounds during the night, so you do not need to wear anything. It is best known for its smart alarm, which aims to wake you in a lighter phase of sleep, plus snoring and cough detection, sleep sounds and an AI sleep coach. It is free to download, with a Premium subscription for full features, and it also supports Apple Watch.
Choose it if you do not want to sleep with a watch, or you want snoring detection.
How much do Apple Watch wearers really sleep?
Before choosing an app, it helps to know what it will probably tell you. We looked at anonymized Apple Watch sleep data from 36 Bodly users with at least two weeks of nights (data up to September 2026):
| What we measured | Result |
|---|---|
| Median average sleep per night | 6 h 40 min |
| People who averaged 7 hours or more | 36% |
| Share of nights under 7 hours, typical person | 61% |
| Share of nights under 6 hours, typical person | 26% |
| Extra sleep on weekends, typical person | 9 minutes |
Two things stand out. First, most people sleep less than the 7 hours adults are advised to get, even people motivated enough to track it. Second, weekends do not make up for it. The typical person slept only nine minutes longer on Saturday and Sunday nights, far too little to repay a week of short nights.
That is exactly what a sleep bank is for: it adds up the shortfall night by night, so a run of 6.5-hour nights shows up as the debt it really is instead of looking "almost fine" each morning.
These are Bodly users, not a random sample of the population, and the group is small.
Watch or phone: which tracks sleep better?
- With a watch, you get heart rate, HRV, respiratory rate, blood oxygen and wrist temperature overnight, which makes sleep stages and recovery scores far more informative.
- With a phone on the nightstand, you get sound-based tracking and a smart alarm without wearing anything, but no heart data.
If you already own an Apple Watch and do not mind wearing it to bed, watch-based tracking gives you much more. Charge it during a predictable daily window, such as your morning shower, so it is ready for the night.
How to actually sleep better with a tracker
A sleep app is only useful if it changes something. The habits that most reliably improve sleep scores:
- Keep a consistent bedtime and wake time, even on weekends. It is 30% of Apple's Sleep Score for a reason.
- Protect your sleep window. Aim for seven to nine hours in bed.
- Limit alcohol and late caffeine. Both disrupt sleep quality even when you fall asleep easily.
- Keep the room cool, dark and quiet.
- Watch the trend, not one night. One bad night happens. A week of short sleep is a sleep debt worth paying back.
Our sleep debt calculator shows how much sleep you owe, and the REM sleep calculator helps you time your wake-up.
Bottom line
If you wear an Apple Watch, Apple's free Sleep Score is the easiest place to start. AutoSleep is the best one-time purchase for detailed sleep data, and Sleep Cycle is the best choice if you do not want to wear a watch in bed. If you want your sleep to connect to recovery, energy, calories and body progress, choose Bodly.
Keep reading
- Normal breathing rate and blood oxygen while sleeping: what your overnight vitals should look like.
- Best Apple Watch recovery apps: apps that turn sleep and HRV into recovery scores.
- Good HRV by age: the recovery signal your sleep affects most.
Sources
Frequently asked questions
How much do Apple Watch users actually sleep?
In anonymized data from 36 Bodly users, the median average was 6 hours 40 minutes a night, and only 36% averaged 7 hours or more. The typical person slept under 7 hours on 61% of nights and gained just nine extra minutes on weekends.
What is the best sleep tracker app for Apple Watch?
Apple's built-in Sleep app with Sleep Score is the best free starting point. AutoSleep is the best one-time purchase for detailed sleep data. Bodly is best if you want your sleep connected to recovery, energy, calories and body progress. Sleep Cycle is best if you prefer not to wear a watch in bed.
Can I track sleep without a watch?
Yes. Apps like Sleep Cycle use your iPhone's microphone to analyze sounds and movement during the night and include a smart alarm. Phone-based tracking cannot measure heart rate, HRV or blood oxygen, so it is less detailed than tracking with a wearable.
How does Apple Watch Sleep Score work?
Introduced with watchOS 26, Apple's Sleep Score rates each night out of 100 based on three things: sleep duration against your goal (50 points), bedtime consistency over recent nights (30 points) and interruptions, meaning how often and how long you wake up (20 points). It works on Apple Watch Series 6 and later, SE 2 and later and all Ultra models running watchOS 26 or later.
Is there a free sleep tracker app?
Yes. Apple's Sleep app and Sleep Score are built in and free on a compatible Apple Watch. Bodly adds a free daily sleep score and sleep bank on top of your Apple Watch data. Sleep Cycle has a free version, with premium features behind a subscription.
Related reading
Apple Watch HRV: What's Normal and How Accurate?
What a normal Apple Watch HRV looks like (with data from 61 users), how the watch measures it, why it reads lower than WHOOP or Oura, how accurate it is and how to use your trend.
Apple Watch Resting Heart Rate: Normal & Accurate?
How Apple Watch measures resting heart rate, how accurate it is, what a normal number looks like, why yours goes up or down, and how to read the trend.
Best Apple Watch Recovery Apps in 2026: 5 Compared
Athlytic, Bevel, Gentler Streak, Training Today and Bodly compared: free tiers, prices, HRV and recovery scores, and which Apple Watch recovery app fits you.