
Many people use their smartphones as alarm clocks, but they can also be a source of unwanted distractions and interruptions at night. Both iOS and Android smartphones have a Do Not Disturb mode that can silence all incoming notifications, including calls, during specified hours. However, some users have reported issues with calls coming through while in sleep mode, despite having Do Not Disturb enabled. This may be due to certain settings allowing repeated calls or calls from favourites to break through, or it could be a bug in the iOS update. To ensure uninterrupted sleep, it's important to review and customise one's phone settings, such as disabling Allow Repeated Calls and setting Allow Calls From to No one.
| Characteristics | Values |
|---|---|
| Inconvenience caused by the need to manually turn on call blocking during sleep | People may forget to manually turn on call blocking before going to sleep, and the process may be seen as cumbersome |
| Inadequate customization options | Users may want to allow calls from specific people or apps while blocking others, and the lack of granular control over call blocking settings can be frustrating |
| Inconsistent behavior across different devices | Call blocking during sleep may work differently or not at all across phones, watches, and tablets, leading to confusion and frustration |
| Lack of awareness about call blocking features | Some people may not be aware of the existence or proper use of call blocking features during sleep |
| Bugs or technical issues | In some cases, calls may still come through even when call blocking during sleep is properly configured due to software bugs or updates |
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What You'll Learn

Call blocking settings may not be configured correctly
Many people use call blocking or sleep mode settings on their phones to prevent unwanted calls from disturbing their sleep. However, there could be instances where calls are still coming through, and this could be due to incorrectly configured call blocking settings.
For iPhone users, the issue of calls coming through during sleep mode could be related to the Do Not Disturb (DND) and Sleep Focus settings. Firstly, ensure that DND is set up correctly. Check that there are no unwanted exceptions listed under the "Allow Calls From" section and that "Allow Repeated Calls" is disabled. Additionally, confirm that your DND and Sleep Focus schedules are aligned correctly and do not overlap, as this could create a window of time where calls can come through.
Another aspect to consider is the integration of Apple devices, such as the iPhone and Apple Watch. If you rely on your Apple Watch to mirror your iPhone's notifications, ensure that the "Mirror iPhone Alerts" option is enabled. This will allow you to receive call notifications on your watch without your phone's ringer disturbing your sleep.
For Android users, the equivalent feature to iOS's Do Not Disturb mode is called Bedtime mode. To access this, open your Settings, choose Digital Wellbeing and parental controls, and then select Bedtime mode. Here, you can specify the hours during which you want your phone to be in this mode, and it will apply the Do Not Disturb settings during those times. Alternatively, Samsung smartphones have the sleep feature located inside the Modes and Routines app.
By carefully reviewing and adjusting these call blocking settings, you can ensure that your sleep remains undisturbed by unwanted phone calls.
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Software updates may cause issues with call blocking
Software updates can introduce new bugs or issues that affect the functionality of call blocking during sleep or focus modes. For example, some users have reported that after updating to iOS 16, they started receiving calls during sleep mode, despite having no exceptions set up and no repeat call breakthroughs allowed. This issue was not present in previous versions of iOS, indicating that the software update may have introduced a bug or change that affected the proper functioning of call blocking during sleep mode.
In some cases, software updates may modify the settings or behaviour of certain features, including call blocking. For instance, a user with an iPhone 14 Pro updated to iOS 16.4.1 experienced calls breaking through overnight in sleep mode, which was not an issue in previous versions. This suggests that the update altered how sleep mode or call blocking functions, leading to unexpected behaviour.
It is worth noting that software updates can also bring improvements and fixes to issues related to call blocking during sleep mode. For example, a user with iOS 16.2 reported that repeated calls from someone not on their favourites list did not get through during sleep focus mode, even with the ""allow repeated calls" option enabled. This indicates that the update addressed a potential bug or improved the effectiveness of call blocking during sleep mode.
While software updates can introduce issues, it is important to stay up to date with the latest versions as they often include security patches and performance enhancements. Additionally, developers may release subsequent updates to address any new bugs or issues that arise. Users experiencing problems with call blocking after an update should check for new versions and update their devices regularly.
To mitigate issues caused by software updates, users can take a few proactive steps. Firstly, backing up device settings before updating can provide a restoration point if problems occur. Secondly, users can familiarise themselves with new update features and settings, as updates may introduce changes to how call blocking or sleep modes function. Understanding these changes can help users adjust their settings accordingly to ensure effective call blocking during sleep. Lastly, users can provide feedback to developers about any issues encountered, contributing to the identification and resolution of problems in future updates.
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Callers may be designated as 'VIP' or 'favourites'
Call blocking during sleep hours is a feature available on many smartphones. However, some users may not use this feature due to concerns about missing important calls. Users can designate certain callers as VIP or favourites, allowing them to bypass call blocking during specific hours. This ensures that important or emergency calls are not missed while blocking unwanted interruptions.
On iOS devices, users can set up "Do Not Disturb" and "Sleep Focus" modes to silence calls and notifications during designated hours. However, there is an option to allow calls from designated VIP or favourite contacts. This can be useful for ensuring that important calls from loved ones or specific contacts are not blocked.
Similarly, Android devices offer "Do Not Disturb" and "Sleep" modes to silence notifications and calls. While it is unclear if Android devices offer a specific VIP or favourites designation, users can customise their priority settings to allow calls from specific contacts. This ensures that important calls are received, even during blocked hours.
In a business context, VIP call routing is a strategy used to prioritise and direct incoming calls from important clients or customers. This ensures that top accounts and customers receive priority assistance when needed. Companies can assign priority levels to callers based on criteria such as customer VIP status, purchase frequency, lifetime value, and revenue contribution. This allows businesses to provide personalised attention and exceptional experiences for their most valuable customers, fostering loyalty and repeat business.
By designating callers as VIP or favourites, individuals and businesses can tailor their call management to ensure important calls are received while minimising unwanted interruptions during sleep or designated quiet hours.
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Repeated calls may override call blocking
On iOS, the 'Do Not Disturb' mode can be enabled by going to Settings, then Focus, and clicking 'Do Not Disturb'. Here, you can pick apps and people to exclude from the mode and create a daily schedule. There is also a ''Sleep'' mode, which can be aligned with your bedtime schedule.
However, some users have reported issues with calls coming through while the 'Sleep' mode is enabled. One user reported that they had their iPhone set to 'Sleep' focus, but still received a call from someone not on their favorites list when they called twice in one minute. Another user reported that they had 'Sleep' mode enabled with no exceptions, yet they still received calls overnight.
To prevent this issue, it is recommended to check the 'Also Allow Calls From' setting and ensure it is set to 'No one'. Additionally, confirm that the 'Allow Repeated Calls' option is disabled.
On Android, the equivalent feature is called 'Bedtime Mode'. It can be accessed through Settings, then Digital Wellbeing and Parental Controls, and finally, Bedtime Mode. This mode turns the phone screen gray during the specified 'snoozing' hours and applies the default 'Do Not Disturb' settings.
It is important to note that call blocking during sleep modes may not always work as expected, and repeated calls may override the blocking feature in certain cases.
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Call blocking may not work with certain accessories
While call blocking features are designed to prevent unwanted calls from reaching you, there may be instances when these features do not work as expected, especially when used in conjunction with certain accessories. In this case, we are focusing on how call blocking may not function properly when used with specific smartphone accessories, such as smartwatches or screen protectors.
For iPhone users, the "Sleep Mode" or "Focus Mode" is designed to silence incoming calls and notifications during specified hours. However, some users have reported issues with calls still coming through, despite having no exceptions listed. This could be due to a bug in the iOS update, as suggested by some users. Additionally, iPhone users with Apple Watches have experienced discrepancies between their phone and watch settings, with the watch failing to vibrate during "Sleep Mode", despite being set up to mirror the phone's notifications.
Android users also face similar challenges with call blocking features. In some cases, the phone's sleep mode or "Bedtime Mode" may not activate properly due to certain accessories. For example, screen protectors or cases that block the proximity sensor can prevent the phone from waking up when taken away from the ear during a call. This results in a delayed response time and inconvenience for the user.
To address these issues, users should review their call blocking settings and ensure they are properly configured. For iPhone users, this may involve checking the "Focus" settings and removing any unused settings, as well as confirming that "Allow Repeated Calls" is disabled. Android users should consider removing any screen protectors or cases that might be blocking the proximity sensor, as this could interfere with the phone's ability to detect when it is being used during a call.
It is important to stay updated with the latest software updates and patches, as these often include fixes for bugs that may be causing issues with call blocking features. Additionally, users should be mindful of the limitations and compatibility of their accessories with their smartphone's call blocking functions. By being proactive and making the necessary adjustments, users can improve the effectiveness of call blocking features and enhance their sleep and overall device experience.
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Frequently asked questions
Some people worry about missing important calls or messages, so they choose not to use call blocking/sleep modes.
You can use the Sleep Focus or Do Not Disturb mode on your iPhone. You can also use the Repeated Calls toggle to allow numbers that call within three minutes to bypass 'Do Not Disturb' and notify you.
Try removing any screen protectors or cases that might be blocking the proximity sensor.
The Do Not Disturb mode will always mute incoming phone calls, messages, and notifications, so you can use this mode to prevent calls from coming through on the Sleep Cycle app.
Try deleting the Sleep Focus and then recreating it, as this has worked for some users.











































