Sleep Tracking on iPhone Without a Watch: What Works (2026)
An iPhone can’t track sleep by itself. Apple’s sleep tracking needs an Apple Watch. Without one, a sleep app can listen to your breathing, use silent sonar, or feel you move through the mattress. In the one lab study that tested all three, the microphone app came closest to the lab, though the study’s authors work for the company that makes it. I make Snore Timeline, which tracks your sleep stages from breathing sounds and records the whole night for free.
Key takeaways
- Apple Health: without a watch, the iPhone only sets a sleep goal and schedule. It records no sleep [1].
- Four methods: phone apps track sleep through the mic, silent sonar, motion through the mattress, or the last time you used your phone.
- No pulse: heart rate, HRV, blood oxygen and temperature need a watch or ring.
In this article
At a glance
Six apps that track a night with an iPhone alone, mine first. Feature claims come from each app’s listing and help center.
Which apps work without a watch, and how do they sense sleep?
| App | Senses sleep with | Starts on its own | Purchases | Privacy label | Rating |
|---|---|---|---|---|---|
| Snore Timeline | Mic | No | None | Data Not Collected | 4.9 (298) |
| Pillow | Phone motion | No | Premium, $19.99 to $59.99 | Data Linked to You | 4.4 (96K) |
| Rise | Phone use or phone motion | Yes, phone use mode | Subscriptions, $9.99 to $69.99 | Data Used to Track You | 4.7 (74K) |
| Sleep Cycle | Mic or phone motion | No | Premium, $2.99 to $57.99 | Data Used to Track You | 4.7 (32K) |
| SleepScore | Mic (sonar) | No [7] | Premium, $9.99 to $59.99 | Data Linked to You | 4.4 (7,521) |
| Sleepwave | Mic (sonar) | No [9] | Premium, $4.99 to $29.99 | Data Used to Track You | 4.7 (6,699) |
Which apps are left out, and why?
| App | Why it’s left out |
|---|---|
| ShutEye | Its FAQ doesn’t say which features are free [16] |
| Sleepzy | No update since 15 April 2025 [23] |
| Sleep Time | Its stages didn’t match the lab in a 2015 study [3] |
| AutoSleep, NapBot, Sleep++ | Need an Apple Watch |
| Apple’s Sleep | Needs an Apple Watch for sleep data [1] |
Can an iPhone track sleep without a watch?
Not with Apple’s own tools. Apple says you must turn on Track Sleep with Apple Watch to receive sleep data; the iPhone’s part is a sleep goal and schedule [1]. A third-party app does the measuring, and many write the night to Apple Health. Snore Timeline writes time asleep, stages and respiratory rate there.
How a phone senses sleep
A phone has a microphone, a speaker and a motion sensor. The method an app uses decides where the phone goes and what fools it.
What does each method pick up, and what trips it up?
| Method | What it picks up | Where the phone goes | What trips it up |
|---|---|---|---|
| Mic | Breathing rhythm, snoring, movement sounds | Nightstand, 1 to 2 feet from your head | Fans, partners and pets |
| Mic (sonar) | Breathing and body movement from echoes | Nightstand, level with your chest | A second sleeper in the room |
| Phone motion | Your movement through the mattress | Face down on the bed, 15 to 25 cm away | Staying still while awake |
| Phone use | When you put the phone down and pick it up | Anywhere nearby | Time awake after you set it down |
Snore Timeline uses the mic. After about 15 minutes it learns your breathing baseline, then reads steady breathing as Deep and irregular breathing as REM. Breathing too soft to hear gets a Silence label, never a guess (how sleep stages work).
What a phone can and can’t measure
The phone hears the room. The watch feels your wrist.
Which signals come from the phone, and which need a watch?
| Signal | iPhone alone | Apple Watch |
|---|---|---|
| Sleep and wake times | Yes, estimate | Yes |
| Sleep stages | Yes, estimate | Yes |
| Snoring and sleep talking | Yes, mic apps | No |
| Respiratory rate | Yes, estimate from sound | Yes |
| Heart rate | No | Yes |
| Wrist temperature | No | Yes, Series 8 or later |
Sound is the phone’s edge: you can play back the snoring and sleep talking. The snoring guide for iPhone without a watch covers that side.
How to set up a phone-only night
Most lost nights come from placement, a dead battery or a forgotten start.
- Place the phone for its method. For a mic app, the nightstand 1 to 2 feet from your head. For sonar, level with your chest with the microphone facing you [9]. For a motion app, face down on the mattress 15 to 25 cm from your body [10].
- Plug it in. On a low battery iOS may close the app mid-night. Snore Timeline uses about 3 to 5% an hour, and less face down (placement checklist).
- Turn on Sleep Focus. It keeps calls from interrupting the recording.
- Automate the start. A Shortcuts time-of-day automation can run Snore Timeline’s Start Recording at 11:00 PM every night (Shortcuts setup).
- Quiet the room. A fan, air purifier or TV can bury the breathing a mic app listens for.
- Sleep alone if you can. SleepScore can’t track two people in one room [6]. A mic hears everyone, so put the phone on your side of the bed.
- Keep the setup the same. Same spot, same distance, full nights of six hours or more.
The apps, one by one
Snore Timeline
A sleep tracker that listens: stages from breathing sounds, a 0 to 100 sleep score with a factor breakdown, and the whole night recorded for playback.
- Free tier: everything. No subscription, no trial, nothing locked, including the Smart Wake Up Alarm and audio export.
- Price: None [17].
- Privacy label: Data Not Collected. Audio stays on the phone.
- Reviews: 40 of 41 US App Store reviews (Nov 2025 to Oct 2026) give 5 stars. 22 praise that it’s free with no ads or subscription, 19 talk about snoring, 12 call it easy to use and 6 mention sleep talking.
- Limits: a watch measures Deep and REM better, so its stages take over when one syncs.
Pillow
Pillow tracks with the phone face down on the mattress.
- Free tier: tracking, time asleep, alarms and data export, after you start and cancel a 7-day trial [11].
- Price: Premium, $19.99 to $59.99. Smart wake-up and audio recordings are Premium [12].
- Privacy label: Data Linked to You: Identifiers, Usage Data, Diagnostics [18].
- Reviews: 164 of 450 recent reviews (7 Sep 2025 to 6 Nov 2026) mention price; 37 doubt its accuracy.
Rise
Rise has nothing to start: it estimates sleep from how you use the phone, then coaches you on sleep debt [4].
- Free tier: none. A trial needs a credit card [5].
- Price: Subscriptions, $9.99 to $69.99 [19].
- Privacy label: Data Used to Track You: Identifiers.
- Reviews: 108 of 300 recent reviews (28 May to 6 Nov 2026) mention price or billing.
Sleep Cycle
Sleep Cycle listens through the mic, or uses the accelerometer if you deny microphone access [13].
- Free tier: smart alarm, sleep analysis and nightly graph, after you start and cancel a trial [14].
- Price: Premium, $2.99 to $57.99. Snore and sound detection are Premium [15].
- Privacy label: Data Used to Track You: Identifiers [20].
- Reviews: 132 of 350 recent reviews (22 Jan to 5 Nov 2026) mention price; 68 mention the alarm.
SleepScore
SleepScore senses breathing and movement with ResMed sonar and, per its help center, records nothing [6].
- Free tier: sleep tracking, free forever per the maker, plus 7 days of advice [8].
- Price: Premium, $9.99 to $59.99, for full history, coaching and a PDF report [21].
- Privacy label: Data Linked to You, including Health & Fitness and Location.
Sleepwave
Sleepwave uses sonar too, paired with a smart alarm [9].
Which one to pick
- Pick Snore Timeline if you want stages, a sleep score, a smart alarm and every snore to play back from the phone alone, with no subscription. A watch or ring can join later through Apple Health.
- Pick Rise if you’ll never remember to press start and will pay for sleep-debt coaching.
- Pick Sleep Cycle if you want a smart alarm without giving any app the microphone.
- Pick SleepScore if you want tracking that records no sound at all.
- Pick Sleepwave if you want a smart alarm window up to 60 minutes and no audio, free through 2026.
Snore Timeline analyzes audio. It is not a medical device and does not diagnose sleep apnea or any other condition. Phone sleep stages are estimates. Bring recordings to a doctor if you suspect breathing pauses.
Frequently asked questions
Does the iPhone Health app track sleep without an Apple Watch?
No. Apple says sleep data needs Track Sleep with Apple Watch, so the Health app shows sleep only when a watch or another app writes it there.
Can a phone app track sleep without pressing start?
Rise can, because it guesses from phone use, though it can count time awake as sleep. Mic and sonar apps need a start, which a Shortcuts automation can handle for you.
Is a phone app as accurate as an Apple Watch?
It depends on the method. A microphone hears your breathing, a mattress app feels your movement, and a watch reads your heart rate and movement from the wrist. Snore Timeline uses your watch’s stages whenever one syncs.
Sources
- Track your sleep with Apple Watch. Apple Support. Accessed 8 Nov 2026.
- Estimating Sleep Stages from Apple Watch (white paper). Apple, October 2025. Accessed 8 Nov 2026.
- Bhat S. et al., Is There a Clinical Role For Smartphone Sleep Apps? Comparison of Sleep Cycle Detection by a Smartphone Application to Polysomnography. Journal of Clinical Sleep Medicine, 2015. Accessed 8 Nov 2026.
- How does RISE track my sleep? RISE Help Center. Accessed 8 Nov 2026.
- Can I use RISE for free? RISE Help Center. Accessed 8 Nov 2026.
- How does SleepScore track my sleep? SleepScore Help Center. Accessed 8 Nov 2026.
- Does the app start or stop tracking my sleep automatically? SleepScore Help Center. Accessed 8 Nov 2026.
- Why should I upgrade to Premium subscription? SleepScore Help Center. Accessed 8 Nov 2026.
- Sleepwave FAQ. Reviva Softworks. Accessed 8 Nov 2026.
- How do I need to place my device during sleep? Pillow Help Center. Accessed 8 Nov 2026.
- Why is payment information required to start Pillow’s free trial? Pillow Help Center. Accessed 8 Nov 2026.
- What’s included in Pillow Premium. Pillow Help Center. Accessed 8 Nov 2026.
- Why is it asking me for permission to use the microphone? Sleep Cycle Help Center. Accessed 8 Nov 2026.
- How can I use Sleep Cycle for free? Sleep Cycle Help Center. Accessed 8 Nov 2026.
- Sleep Cycle Freemium vs. Premium Features. Sleep Cycle Help Center. Accessed 8 Nov 2026.
- ShutEye FAQ. Enerjoy. Accessed 8 Nov 2026.
- Snore Timeline on the App Store (listing, purchases, privacy label). Apple. Accessed 8 Nov 2026.
- Pillow on the App Store (listing, purchases, privacy label). Apple. Accessed 8 Nov 2026.
- RISE on the App Store (listing, purchases, privacy label). Apple. Accessed 8 Nov 2026.
- Sleep Cycle on the App Store (listing, purchases, privacy label). Apple. Accessed 8 Nov 2026.
- SleepScore on the App Store (listing, purchases, privacy label). Apple. Accessed 8 Nov 2026.
- Sleepwave on the App Store (listing, purchases, privacy label). Apple. Accessed 8 Nov 2026.
- Sleepzy on the App Store (listing and version history). Apple. Accessed 8 Nov 2026.
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