Top questions:
Do I have to pay again to activate Premium?
Everyone who has purchased Sleep Cycle before will get the Premium features for free, except for Online backup which will remain a subscription service. If you have an existing SleepSecure account, you can use this to login to our Online backup service. We’ve identified a problem where some users don’t get Premium for free, this issue has been resolved in version 5.0.1.
How does Sleep Cycle work?
As you sleep you go through different states that range from deep sleep to light sleep. The state you are in when your alarm clock goes off decides how tired you feel. A fixed alarm clock is a lottery. If you are lucky it wakes you in light sleep. If you are unlucky you are in deep sleep and barely conscious. We all know that feeling. Sleep Cycle always tries to wake you in your lightest sleep state. It’s the natural way to wake up where you feel rested and relaxed. Since you move differently in bed during the different sleep states, Sleep Cycle can monitor your movement to determine which state you are in. Science instead of chance. Sleep Quality measures how well you slept. Calmer and longer sleep gives a higher score. Sleep Cycle needs 5 nights of sleep data to calibrate Sleep Quality.
How do I use Sleep Cycle?
Instruction: Sleep Cycle uses a wake up phase (30 minutes by default) that ends at your desired alarm time. During this phase Sleep Cycle will monitor signals from your body to wake you softly, when you are in the lightest possible sleep state. Placement: Sleep Cycle has two motion detection modes, microphone or accelerometer. You can change modes under: Settings > Motion detection. Microphone The built-in microphone is used to analyze your movements as you sleep. It’s important that you place your phone correctly. microphone Accelerometer The accelerometer is used to analyze your movements as you sleep. It’s important that you place your phone correctly. accelerometer Depending on your type of bed and mattress you might find certain placements work better. Please do not place your iPhone underneath a pillow or thick mattress as it can become warm when charging. If you feel uncomfortable having an iPhone close to your head, you may set it to Flight Mode. As a bonus this also ensures that no one can bother you while you sleep. Snooze:

Snooze by simply double-tap on the phone. Picking up the phone will also automatically snooze. Sleep Cycle has two snooze modes: Intelligent snooze Intelligent snooze lets you snooze through your wake up phase. Each snooze duration becomes shorter, gently bringing you from asleep to completely awake at your desired alarm time. Regular snooze Regular snooze lets you choose a specific snooze time between 1-20 minutes. You can snooze an unlimited number of times. You can change modes under Settings. Snooze can also be completely disabled.
Do you support Apple Watch?
Not yet. More information will be available when we know more.
Do you support Apple Health App?
Yes, Sleep Cycle fully supports Apple Health App. Sleep Cycle will ask you for permission to sync with the Health App after your 15th night. You can also activate this under Settings / Advanced / Apple Health. We write the following data to Apple Health: Sleep Analysis and Heart Rate. Sleep Cycle Privacy Policy
Why is it asking me for permission to use the microphone when I start an alarm?

Sleep Cycle uses the phone’s microphone to listen to and identify movements in bed. It does not record, externally download or store anything. All sound is analyzed in real time and thereafter discarded.

You can still use the app without the permission if you use the accelerometer as the primary source for analysis.

I don't have a nightstand. Where should I place my phone?

It’s perfectly fine to place the phone on the floor next to the bed. The analysis works well from a distance, however the closer the phone is to your body the better.

Do you store any sound?
No sound is downloaded externally or stored on the device. Sleep Cycle analyses the sound in short chunks. Each chunk is 1/10 of a second. The sound is analyzed in real-time on the device. Once the sound has been analyzed and added to the sleep analysis (taking milliseconds), the sound is instantly discarded.
Does Sleep Cycle function in background mode?
Yes, background mode is fully supported.
Does Sleep Cycle work with Do Not Disturb?
Yes. Just make sure to lock your phone after setting the alarm, since DND only works when the phone is locked. Important: Your incoming messages will always be muted when Sleep Cycle is used in the background and without Airplay set to On. Keep Sleep Cycle in the foreground without locking the phone and activate Airplay in Settings/Advanced if you want your incoming messages to sound.
Why are my notifications silent?
To solve get notifications to sound while using the app you need to do the following steps: Activate AirPlay support under Settings/Advanced and keep Sleep Cycle in the foreground without locking the phone. Sleep Cycle will still function normally and the alarm will sound through your phone, (unless you actually connect AirPlay speakers).
Can I run Sleep Cycle in “No alarm mode”?
Under Settings, at the top of the screen, just toggle Alarm to Off. Sleep Cycle will now only analyze your sleep and not wake you up.
How is Sleep Quality calculated?
Sleep Cycle’s Sleep Quality score is affected by two factors: * Sleep quantity * Frequency of movement The more you sleep and the less you move, the higher Sleep Quality you will get. Sleep Quality will be calibrated the first nights using Sleep Cycle, and the value will be more and more accurate over time. We are currently researching the next version of Sleep Quality, with factors such as waking up in the middle of night, % deep sleep, number of sleep cycles etc. affect the value.
Can I activate Airplane mode via the app?
It is not possible for us to automatically set airplane mode when going to bed.
Sleep Cycle created a graph when I placed it on a table during night. Why?
Sleep Cycle needs one, sometimes two, nights to calibrate to your accelerometer. Usually the calibration is not needed but on some (very few) devices the accelerometer is too sensitive and can detect movement when there was none during the first one or two nights. If you place your iPhone/iPod in bed, according to the instructions, then this is not a problem. When calibrated, Sleep Cycle is extremely sensitive to movement. It can detect the slightest vibrations. For example, you walking past the iPhone/iPad or a car/truck passing by on the street outside. When you place your iPhone/iPad on a flat surface then Sleep Cycle detects very little movement. It then assumes that the users movements are very difficult to detect and goes into a mode where every movement is treated very seriously (and creates a big spike in the graph). If you still feel Sleep Cycle creates inaccurate graphs, please do not hesitate to contact us. We’ll analyze your data and check if you have discovered an issue with the Sleep Cycle movement-detecting code.
What features are included in Sleep Cycle Freemium?

Sleep Cycle Premium includes:

  • Online back-up with SleepSecure
  • Sleep aid
  • Sleep notes
  • Wake-up mood
  • Wake-up weather report
  • Heart rate tracking
  • Philips Hue integration
  • Runkeeper integration
  • More alarm sounds
What features are included in Sleep Cycle Premium?
Sleep Cycle Freemium includes:

  • Online back-up
  • Sleep aid
  • Sleep notes
  • Wake-up mood
  • Wake-up weather report
  • Heart rate tracking
  • Philips Hue integration
  • Runkeeper integration

Upgrade to Premium in the Sleep Cycle app under: Settings – Premium Features

How do I upgrade to Premium?

Upgrade to Premium in the Sleep Cycle app under: Settings – Premium

How do I view, change or cancel my Premium subscription?

Subscriptions are handled by Apple. Follow the steps below to view, change, or cancel your subscriptions from your iPhone, iPad, or iPod touch, or your computer.

On your iPhone, iPad, or iPod touch:

  1. On the Home screen, tap Settings.
  2. Tap iTunes and App Store.
  3. Tap your Apple ID.
  4. View Apple ID. You might need to sign in.
  5. Under Subscriptions, tap Manage. If you don’t see a subscription in iTunes and are still being charged, make sure that you’re signed in with the correct Apple ID.
  6. Tap the subscription that you want to manage.
  7. Use the options to manage your subscription. You can choose a different subscription period, or turn off Automatic Renewal.

Turn off Automatic Renewal to cancel a subscription. Your subscription will stop at the end of the current billing cycle. 

On you Mac or PC:

  1. Open iTunes.
  2. Click Sign in and enter your Apple ID.
  3. Click your name, and select Account info from the drop-down menu.
  4. Enter your password again.

On the account information screen: 

  1. Scroll to the Settings section.
  2. To the right of Subscriptions, click Manage. If you don’t see a subscription in iTunes and are still being charged, make sure that you’re signed in with the correct Apple ID.
  3. Choose the subscription you want to manage.
  4. Use the options to manage your subscription. You can choose a different subscription period, or turn off Automatic Renewal.

Turn off Automatic Renewal to cancel a subscription. Your subscription will stop at the end of the current billing cycle. 

What is Online backup?
Sleep Cycle’s online backup service let’s you sync your Sleep Cycle data seamlessly to the cloud and between devices. With Online backup you can change, restore or upgrade your device without having to worry about losing your sleep data. In addition, you also get access to the Online backup web interface where you can look at graphs, export your data, and see quick stats. Some of the graphs currently available in addition to the standard ones found in the app are: Went to bed per day of the week Time in bed per day of the week Time in bed vs Went to bed Sleep note usage More graphs and feature will be added continually.
How do I enable Sleep notes?
With Sleep notes you can find correlations between your sleep patterns and daily activities. Under the tab Settings, go to Sleep notes and change the settings to On. From there you can also change the default Sleep Notes by choosing “Edit sleep notes”. Sleep cycle will now each night ask you to input your sleep notes, when starting the alarm before going to sleep. And you will be asked to enter your Wake up mood in the morning when you wake up.
How do I enable Wake-up mood?
Under the tab Settings, go to Wake-up mood and change the settings to On. Upon wake-up and straight after the alarm has been turned off, you will be asked to document their wake-up mood. This functions lets you find correlations between your sleep quality and your wake-up mood.
How do I enable Heart rate tracking?
Under the tab Settings, go to Heart rate and change the settings to On. Users who activate heart rate reading will be asked to place their finger on the camera lens to record their wake-up resting pulse. Their heart rate will then be included in their sleep analysis graphs.
How do I enable Sleep aid?
Under the tab Settings, go to Sleep aid and change the settings to On.
What does Activity and Steps mean?
If you have an iPhone 5S or later version, the phone measures your activity during the day automatically. Activity is your amount of steps since your last sleep session. You do not have to keep the app running to measure steps, the phone does this automatically. If you do not want the phone to measure this please go to: iOS Settings -> Privacy -> Motion Activity
Does Runkeeper work with Airplane mode activated?
Runkeeper integration works only if Sleep Cycle is used without Airplane mode.
During sleep:
Does Sleep Cycle work with two people sharing a bed?

Sleep Cycle works well for two persons sharing bed using microphone motion detection. Sound decays exponentially with distance, this means that sounds generated by your partner will have a much lower volume than sounds generated by you. 

In addition to this, If both users use Sleep Cycle then the two devices will automatically connect to each other over Wi-Fi. Sleep Cycle can then detect where in bed a sound originates from with an accuracy of 30 cm (1 feet), translating the analysis into an extremely accurate sleep analysis for both users.

What does the link symbol on my night screen mean?
If both you and your partner use Sleep Cycle with the microphone as the motion detector, the two installations will automatically link both phones to each other over Wi-Fi and the name of the other device is shown on the night screen. Using this link-technology we can detect where in bed a sound originates with an accuracy of 30 cm (1 feet).
What if we don’t have a Wi-Fi network? Will we still be able to track our sleep with two persons in bed?

In order to link the two devices, your phone will need to be connected to the same Wi-Fi network.

Sleep Cycle will also work great for two persons in bed without linking the two devices.

Does Sleep Cycle work on water beds or memory foam mattresses, such as Tempur?
Sleep Cycle will work on all types of matresses. Sleep Cycle sound analysis technology tracks the sound of your movement in bed and filters out unrelated sounds and white noise.
If I wake up in the middle of the night and get up from the bed, should I reset the alarm?
There is no need to reset the alarm if you get out of bed for a short while during night. Sleep Cycle will not detect movement if you are not there, so keep this in mind when reading your graph in the morning.
Do I have to keep the charger connected all night?
We do not recommend using Sleep Cycle without a charger connected. Sleep Cycle uses at average 30% of the battery during one night, sometimes more sometimes less. If you do not charge your iPhone/iPod touch during the night it risks running out of battery before the morning. You can activate battery warning under the tab ‘Settings’ to enable Sleep Cycle to warn you if you’re running out of battery, but we still recommend setting a back-up alarm if you wish to sleep without the charger connected.
Does Sleep Cycle function properly with auto-lock on?
Yes Sleep Cycle works with auto-lock on.
The alarm always goes off at the end of my alarm time! Why?
Sleep Cycle needs at least two nights to adapt and calibrate to your movement patterns. Therefore, it is common for Sleep Cycle to wake you up at the end of your alarm-window for the first 3-4 nights when you start using Sleep Cycle. You can also have a look at the sleep graphs to see if your phone is picking up your movements correctly. If you think something is wrong, check if the phone is placed correct.
My iPhone/iPod touch becomes hot during the night. Is this normal?
Your device should not heat up exponentially during night. Make sure you do not cover it with thick material, and that your Sleep Cycle and iOS versions are updated.
How does the volume setting function in Sleep Cycle?
The Sleep Cycle volume is independent of the iOS volume. Sleep Cycle will sound even if your iPhone is muted, you’ve turned off the volume, or if you’re using “Do not disturb”. The volume under Sleep Cycle settings will define the starting volume of the alarm. After about 1,5 minutes the volume will increased automatically until maximum volume is reached.
Can I listen to music or podcasts while using Sleep Cycle?
Yes: 1. Set an alarm. 2. Start your music or podcast.
Can I use my own MP3 music as a wake up melody?
Can my iPhone/iPod touch be muted (work in silent mode)?
Yes. The alarm will sound in the morning even if the device is muted.
How will Sleep Cycle work with a headset connected?
We recommend disconnecting your headset when running an alarm. If you are using your headphones, the alarm will sound though the headset in the morning. This function was implemented in version 4.1, to ensure people with reduced hearing can connect external speakers with a cable, dock or Airplay.
Do you support external speakers using Airplay, Bluetooth, dock or cable?
Only available when using motion detection accelerometer! Activate support for Airplay under Settings > Airplay.

Do you support iPod Touch or iPad?
Yes. We support devices with iOS8 or later, including iPod Touch fifth generation or later and iPad second generation or later.
Does Sleep Cycle work with Exchange server auto-lock security features on?
Yes it does.
Did you not find the answer to your question above? Please contact us Note that we receive a lot of e-mail and sometimes it takes up to a week before we answer support e-mail. We read all comments, suggestions and feature requests but can not guarantee to reply all of them. Unsolicited Idea Submission Policy.