"Analysis Failed" on the Apple Watch

Sleep analysis may fail for a number of reasons, in many cases beyond Pillow's control. We have prepared a set of recommendations that should ensure that Sleep analysis always succeeds.

First, make sure you have the latest version of Pillow, iOS, and watchOS.

Sleep analysis requires that you keep the Apple Watch on your wrist during sleep. When you stop the sleep session in the morning, ensure that the Apple Watch is still on your wrist until the analysis is complete. 

Ensure Pillow has proper access to Motion & Fitness data:
1) Restart your iPhone and Apple Watch
2) Make sure the iPhone and Apple are connected to each other and in range.
3) Open the Settings app on your iPhone
4) Tap the "Privacy" menu and select "Motion & Fitness."
5) Flip off and then back on the switch that corresponds to Pillow
6) Attempt to open the sleep statistics on Pillow on the Apple Watch.

Additional recommendations:

Please make sure you apply ALL the following recommendations:

Add Pillow's complication on a watch face.
If you don't have any space in the watch faces you currently use, please add a new one and add Pillow's complication there.

Keep Pillow in Dock:
Open Pillow on the Apple Watch > Press the button on the side of the Apple Watch to bring up the Dock > Tap "Keep in dock."

Keep the Apple Watch on your wrist until sleep analysis has completed
When you stop a session in the morning, Pillow will need some time to analyze your data and will display a progress bar of this process. Please keep your Apple Watch on your wrist until the progress bar has reached 100%.

Setup the iPhone to automatically set the time and date.
This should be the default setting. However, if you have selected to set up the time and date manually, there could be several issues with sleep analysis. To set time and date automatically:
Open the Settings app on your iPhone > Go to: General > Date & Time > Turn on: "Set Automatically".

Set the Apple Watch to Wake the Screen with 1 hour.
On your Apple Watch:  Open the "Settings" app > Wake Screen > Turn On: "Wake Screen on Wrist Raise" and right after that "On screen raise show last app": "Within 1 Hour of Last Use".
The above setting will ensure that Pillow remains in focus as long as needed

Failed analysis due to an update of iOS or watchOS version. 
In some rare cases, analysis can fail if iOS or watchOS upgrade during the night that the session was running. In those cases, sleep analysis data for that night might not be recoverable.

If analysis continues to fail despite having verified the above, we would recommend as a last resort to attempt unpairing and re-paring your Apple Watch to the iPhone. 

If the problem persists, contact our support team to help you right away.
Via web: https://pillow.uservoice.com
From your iPhone: Open Pillow on the iPhone > Tap on the settings icon > Select 'Helpdesk'


  1. "Analysis Failed" on the Apple Watch
  2. Alarm/Wakeup time changes when using the Apple Watch. Why?
  3. No sound or audio recorded
  4. My Apple Watch does not sync with my iPhone
  5. I'm presented with a message to "turn on Bluetooth" when starting a session.
  6. Pillow does not appear under Privacy -> Motion & Fitness. What can I do?
  7. How do I force sync the session from Apple Watch to the iPhone?
  8. Sessions on my Apple Watch are not syncing with my iPhone
  9. Can I manually sync a sleep session from the Apple Watch to the iPhone?
  10. Snooze does not work when device is locked
  11. How do I get started with Pillow?
  12. After an app update my sleep data are missing from the app. What can I do?
  13. How does pillow calculate sleep quality?
  14. How do I need to place my device during sleep?
  15. Do I need to calibrate my device?
  16. Does Pillow work in background?
  17. Why do I have to keep it plugged in during the night?
  18. Does Pillow work if my device is on silent/Do Not Disturb mode?
  19. How does smart wakeup work?
  20. What is sleep aid?
  21. Does Pillow record every sound that may occur through the night?
  22. Why does pillow need access to the microphone?
  23. Why does pillow need access to my motion data?
  24. Do you store any sleep data outside my phone?
  25. How does Runkeeper connectivity work?
  26. How does iCloud work?
  27. If I am using iCloud sync, does the device need to be always connected to the Internet?
  28. I want to switch off iCloud for my device. Can I keep a local copy of my sleep data on the device?
  29. Does Pillow record every sound that may occur through the night?
  30. Can I export Pillow data?
  31. I try to purchase Pillow Premium and get "Purchase Failed". What's going on?
  32. I can't get out off the Upgrade/Premium window
  33. Does Pillow work with a CPAP machine?
  34. I woke up and the daily report shows "no data recorded". What's happening?
  35. How do I restore the in-app purchase?
  36. I'm using an iTunes library song as an alarm sound and the song does not play on wakeup. What's going on?
  37. Can I set my own alarm times for the 3D touch shortcut menu?
  38. How can I see my last night's sleep analysis?
  39. My Apple Watch is showing that a session is active on the phone, but it is not. What should I do?
  40. Can I use the Apple Watch app without the phone being in contact?
  41. Will Pillow work under my pillow?
  42. Can i turn my phone off while using Pillow?
  43. Does Pillow have Apple Watch support?
  44. How do I listen to my audio recordings?
  45. Does the alarm function work, even if my device is locked?
  46. The intro video won't play
  47. If I pay for the Premium features, is this a one time payment?
  48. Does the app work when the screen locks?
  49. I get the message "In app purchases not allowed" when I try to unlock the Premium features
  50. My sleep shows as "Awake" for the whole night when using the Watch. Why?
  51. Can I use Pillow's premium features with Family sharing?
  52. How does Pillow calculate REM sleep?
  53. Why do my audio recordings fail to play?
  54. When using the Apple Watch, the smart alarm does not work accurately. Why?
  55. Pillow asks to enable motion and fitness access, but it is already enabled. What should I do?
  56. Will notifications, texts and calls go through while Pillow is active?
  57. How to activate sensor recording in iPhone 5/5C
  58. After updating, I get a blank screen when starting Pillow on the Apple Watch. What can I do?
  59. Analyzing on the Apple Watch gets stuck. What can I do?
  60. How does heart rate work in Pillow?
  61. Can Pillow track my sleep automatically?
  62. I'm trying to restore my premium upgrade, but the app says "Restore failed".
  63. Will Pillow on the Apple Watch work with "Theater mode" enabled?
  64. Does Airplane mode affect sleep tracking when I use the Apple Watch?
  65. What do the indicators (arrows) next to sleep quality mean?
  66. Pillow has switched to Chinese or another language.
  67. My sleep sessions shows only "Awake" time. Why?
  68. Problems syncing my data via iCloud
  69. Upgrade failed (Unable to purchase the Premium Features)
  70. I don't see any heart rate data
  71. How can I leave nap mode?
  72. I cannot install Pillow on my Apple Watch
  73. I purchased the Premium features of Pillow and now Pillow is asking again to unlock the Premium Features
  74. Will Pillow work if I turn on Airplane mode on my iPhone or iPad?
  75. The alarm goes off after I delete/remove Pillow
  76. The alarm does not go off or is completely silent.

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