Fall asleep, stay asleep, and wake up refreshed!
Sleep Time is a complete sleep tracker and smart alarm clock. Place your phone on the bed and Sleep Time analyses your sleep cycles through the night, then wakes you during your lightest sleep within your chosen window — so you start the day rested instead of groggy.
Trusted by over 35 million users, Sleep Time is an award-winning sleep app.
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5/5 “I finally understand why I wake up tired some mornings. Sleep Time showed me my sleep cycles, and the smart alarm has made my mornings so much easier — I haven’t hit snooze in weeks.”
5/5 “I’ve tried several apps that log sleep duration and stages, and the interface of Sleep Time is the best by far. It’s easy to understand and simple to use.”
5/5 “Fascinating results. It works remarkably well providing helpful information.”
Featured on: TechCrunch, Mashable, Lifehacker, 148apps, eHealth, and many others.
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MAIN FEATURES
√ Set the alarm clock with a single gesture
√ Fall asleep to soothing soundscapes and white noise
√ Alarm rings even in silent mode
√ Choose from 20 built-in alarm sounds
√ Wake up to your favourite song from your music library
√ Sleep Lab™ with light, deep, and REM sleep analysis
√ Detailed daily, weekly, and monthly graphs
√ Smart wake-up window for a gentler start to the day
√ Full history makes night-to-night comparison easy
√ Cloud backup and restore for your sleep data
√ Clear, easy-to-read interface
√ Apple Health integration
We build Sleep Time for our users and would love your feedback. Tell us what you think so we can keep improving the app.
Upgrade to Premium for unlimited soundscapes, advanced sleep insights, priority support, and an ad-free experience with an auto-renewable subscription.
We offer auto-renewable subscriptions with the following terms:
- Payment will be charged to your iTunes account at confirmation of purchase
- Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period
- Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase
- No cancellation of the current subscription is allowed during active subscription period
- Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication
- Our privacy policy and terms of use: https://www.azumio.com/page/privacypolicy
Sweet Dreams,
Azumio Team
I'm on 24/7 standby therefore a reliable alarm clock is important. This app truly works well for my kind of sleep pattern. I've no regular sleeping time or waking time. Yet this app wakes me up all the time without fail. It'll be good to have more tone without having to pay.
Works but with annoyances
Acesta.
A few annoyances which should be fixed to warrent higher stars. After every use the volume on my phone is set to max which is very annoying. Also for the free version after showing the ads , there is no close option. The ads does not close by itself after time limits too. Will not consider paying for the premium unless the free version works properly first!
Bug fix please
Chen WR
Great app that helps with my sleep! However, the app keeps closing on its own and does not track anything through the night. Alarm does not ring at times too. Help would be greatly appreciated.
Battery Eater
NatV14
As long as your battery drops below 25%, this app does not record the sleep data. But it continues to consume battery till 1% without recording anything. Very wasteful. Humans do got go to bed with a fully charged phone, and not everyone has a charger beside their bed. This app fails to take note of these basic human aspects.
• iOS 27-related improvements and bug fixes
Version 5.458
The developer, Azumio Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
Identifiers
Data Linked to You
The following data may be collected and linked to your identity:
Health & Fitness
Location
Contact Info
User Content
Identifiers
Usage Data
Diagnostics
Privacy practices may vary based, for example, on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Provider
Azumio Inc.
Size
194.3 MB
Category
Health & Fitness
Compatibility
Requires iOS 16.0 or later.
iPhone Requires iOS 16.0 or later.
Apple Vision Requires visionOS 1.0 or later.
Location
This app may use your location even when it is not open, which can decrease device battery life.
