Review · Health & fitness
Sleep Cycle review
A sleep tracker and Smart Alarm that uses sound analysis from your phone, with sleep sounds, stories and an AI sleep coach.
By the HearSmart research desk · Updated November 8, 2026
- Performance (40%)
- 8.3
- Ease of use (25%)
- 8.8
- Value (35%)
- 7.8
Sleep Cycle is a tracker first and a sleep aid second. Put your phone on the nightstand and it listens with patented sound analysis, or uses the accelerometer, to estimate sleep stages, then its Smart Alarm wakes you during your lightest phase. It also detects snoring, coughing and sleep talk, which helps light sleepers and partners see what is happening at night. Sleep notes let you log caffeine, stress or exercise and compare nights, and long-term trends set your results against global benchmarks. An AI sleep coach called Luma gives guidance from your tracked nights. For winding down, there is a library of stories, soundscapes and guided meditations. Sleep Cycle lists supportive soundscapes, sleep stories, data export, Philips Hue sunrise and Apple Health sync among its Premium tools. Its US Premium price is not stated in the App Store description, so check the in-app offer.
Who it is for
People who want to track sleep and snoring without a wearable and wake up less groggy.
Price
See vendor pricing (USD check pending); free trial of Premium.
US price check pending. See the vendor pricing page.
Key features
- Sleep tracking by sound analysis or accelerometer, no wearable needed
- Smart Alarm that wakes you in your lightest sleep phase
- Detection of snoring, coughing and sleep talking
- AI sleep coach Luma and sleep programs
- Sleep sounds library with stories, soundscapes and guided meditations
Strengths and weaknesses
- Strength: Works with just a phone on the nightstand
- Strength: Snore and cough tracking
- Strength: Long-term trends and global benchmarks
- Weakness: Stories, data export and Apple Health sync are Premium tools
- Weakness: No CBT-I program
- Weakness: Premium US price could not be confirmed
Key facts
- Tracking: Sound analysis or accelerometer
- Downloads: 40 million+, per Sleep Cycle
- Coach: AI sleep coach Luma
- Integrations: Apple Health, Philips Hue sunrise
- Platforms: iPhone, iPad, Apple Watch
Where it ranks
Sleep Cycle is No. 7 in our Best Sleep Apps verdict.
Alternatives we scored
- Calm8.8
- Slumber8.7
- Headspace8.6
- BetterSleep8.4
Visit sleepcycle.com · Questions or corrections: editorial@hearsmart.org