Sleep Cycle Review (2026)
Phone-only sleep tracker with a smart alarm that actually works.
8.2 / 10
Sleep Cycle has been the default phone-only sleep tracker for over a decade. It still is — particularly for the smart alarm, which remains best-in-class.
The good and the bad
What we love
- No wearable needed
- Smart alarm reliably wakes you in light sleep
- Established and stable
What we don't
- Stage accuracy below wrist-worn options
- Some features feel old
Pricing & plans
Free
$0
Basic tracking + smart alarm
Premium
$39.99/year
Trends, snore detection, online backup, integrations
Recommendations
Use Sleep Cycle if you…
- Don't own a wearable
- Specifically want a smart alarm
Skip Sleep Cycle if you…
- Want lab-grade stage detection — get an Apple Watch + AutoSleep
Best alternatives to Sleep Cycle
Frequently asked questions
Does the Sleep Cycle smart alarm work?
Yes — it's the most reliable smart alarm we tested. Set a 30-minute window and it'll wake you in light sleep within it.