
Sleep Cycle is a smartphone application designed to help users improve their sleep quality and wake up feeling more refreshed. It does this by monitoring sleep cycles and creating a calming bedtime routine with soothing sounds. The application will work as intended even if the 'Do Not Disturb' mode is activated on a user's phone. 'Do Not Disturb' mode mutes incoming phone calls, messages, and notifications.
| Characteristics | Values |
|---|---|
| Will Sleep Cycle work with 'Do Not Disturb' mode activated? | Yes, Sleep Cycle will still work as it should even if the 'Do Not Disturb' mode is activated. |
| What does 'Do Not Disturb' mode do? | Incoming phone calls, messages, and notifications will always be muted if you use the 'Do Not Disturb' mode on your phone. |
| Can you have Sleep Focus and 'Do Not Disturb' active at the same time? | No, you can't have two focuses active at the same time. When Sleep Focus turns on, 'Do Not Disturb' will turn off and vice versa. |
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What You'll Learn
- Sleep Cycle works with 'Do Not Disturb' mode activated
- 'Do Not Disturb' mutes incoming calls, messages, and notifications
- Sleep Focus is a feature that helps users get uninterrupted sleep
- Sleep Mode disables gestures that toggle the display
- Sleep Mode enables sensors and metrics like pulse oximetry, breathing rate, and body temperature

Sleep Cycle works with 'Do Not Disturb' mode activated
Sleep Cycle will still work as intended even if 'Do Not Disturb' mode is activated on your phone. 'Do Not Disturb' mode will mute incoming phone calls, messages, and notifications, but Sleep Cycle will continue to function in the background. This means you can use Sleep Cycle worry-free if you want to avoid distractions while trying to fall asleep or maintain a healthy sleep schedule.
Sleep Cycle is a valuable tool for monitoring your sleep cycles and improving your sleep quality. It provides insights into your sleep patterns, helping you understand your sleep behaviour and make informed decisions to optimise your sleep. By using Sleep Cycle alongside 'Do Not Disturb' mode, you can create a peaceful environment conducive to restful sleep.
The 'Do Not Disturb' feature on your phone is particularly useful if you want to minimise distractions and limit interruptions during your sleep. It ensures that you are not disturbed by notifications, calls, or messages, creating a calm and technology-free environment for sleep. This feature is especially beneficial if you tend to receive frequent notifications or calls that might disrupt your sleep.
Additionally, Sleep Cycle's functionality remains unaffected by 'Do Not Disturb' mode. Sleep Cycle can continue to track your sleep patterns, provide insights, and offer recommendations even when 'Do Not Disturb' is turned on. This integration ensures that you can take advantage of both features simultaneously, benefiting from undisturbed sleep while still gathering valuable data about your sleep habits.
It is important to note that if you require notifications to be enabled during the night, such as for work or other purposes, you should refrain from using 'Do Not Disturb' mode. In such cases, you may choose to keep 'Do Not Disturb' deactivated while still utilising Sleep Cycle to track your sleep patterns and receive recommendations for improving your sleep quality. This flexibility allows you to customise your sleep environment according to your specific needs and preferences.
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'Do Not Disturb' mutes incoming calls, messages, and notifications
Do Not Disturb is a useful feature that allows you to silence your phone and manage when and how you want to be notified. It is available on various devices, including iPhones, iPads, Android phones, and Windows.
When Do Not Disturb is activated, incoming phone calls, messages, and notifications are muted. This means that your device will not vibrate or make any sounds when you receive a call, message, or notification. However, it is important to note that alarms may still make noise, depending on your settings. Additionally, during a phone call, you will still be able to hear the other person.
You can customize your Do Not Disturb settings to suit your needs. For example, you can choose to allow notifications from specific people or apps even when Do Not Disturb is turned on. You can also set a schedule for when you want Do Not Disturb to be activated, such as during your bedtime or while driving.
On iPhones, you can access Do Not Disturb by opening the Control Center and tapping the crescent moon icon. On Android phones, you can swipe down from the top of your screen and select Do Not Disturb from the Quick Settings menu. For Windows, you can open the Settings app, go to System > Notifications, and enable Do Not Disturb from there.
It is worth noting that the Sleep Cycle app will continue to work as intended even with Do Not Disturb activated. So, if you need notifications enabled while you sleep, you might want to avoid using Do Not Disturb mode.
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Sleep Focus is a feature that helps users get uninterrupted sleep
Sleep Focus is a feature designed to help users get uninterrupted sleep. It is available on iOS 16 and can be activated through the Control Center. Users can turn Sleep Focus on or off by opening the Control Center, tapping Focus, and then tapping Sleep. Alternatively, users can go to Settings > Focus > Share Across Devices to share their Sleep Focus settings with other devices.
Sleep Focus is based on a sleep schedule and automatically enables a set time of the user's choosing. During this time, the iPhone enters Do Not Disturb mode, which silences calls, messages, and notifications. A simplified lock screen is displayed, but users can customize notifications and allow important calls or specific apps to bypass Do Not Disturb mode.
Sleep Focus is similar to the previous Bedtime feature in iOS 14, which could be active at the same time as Do Not Disturb. However, in iOS 15, users reported issues with having both features active simultaneously. As Sleep Focus and Do Not Disturb are both considered Focus modes, only one can be enabled at a time. Therefore, when Sleep Focus is turned on, Do Not Disturb will be disabled, and vice versa.
To promote a healthy sleep environment, it is recommended to establish phone-free zones in the bedroom. This may involve charging the phone outside the bedroom or using a smartwatch or dedicated alarm clock instead of a smartphone as an alarm. Additionally, the iPhone's Wind Down feature can help prepare the user for sleep by creating a calming bedtime routine with activities like drinking tea or listening to relaxing music.
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Sleep Mode disables gestures that toggle the display
Sleep Cycle is a smartphone application that tracks sleep patterns and provides insights to help users improve their sleep quality. The app uses the phone's accelerometer to detect movement during sleep, allowing it to identify different sleep stages and provide a detailed sleep analysis.
Now, coming to the topic of 'Do Not Disturb' mode, this is a setting available on smartphones and other devices that allows users to silence incoming calls, messages, and notifications temporarily. It is useful when users do not want to be disturbed by their devices, such as during sleep or meetings.
When 'Do Not Disturb' mode is activated on a smartphone, Sleep Cycle will continue to function as intended. The app relies on the phone's internal sensors and algorithms to track sleep patterns, so external factors like notifications or incoming calls will not interfere with its functionality. Therefore, users can rest assured that enabling 'Do Not Disturb' will not affect Sleep Cycle's ability to monitor their sleep.
However, it is worth noting that Sleep Mode on devices like the Apple Watch has some differences. When Sleep Mode is enabled on the watch, it disables gestures that usually toggle the display. This means that users will not be able to wake the screen or interact with it using gestures, and they may need to resort to alternative methods, such as tapping the screen or pressing a button, to interact with the device.
In summary, Sleep Mode on devices like the Apple Watch disables gestures for toggling the display, requiring manual interaction to wake the screen. Meanwhile, Sleep Cycle, as a smartphone application, is compatible with 'Do Not Disturb' mode and will continue to work as expected during periods when notifications and calls are silenced.
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Sleep Mode enables sensors and metrics like pulse oximetry, breathing rate, and body temperature
Sleep Cycle will still work as intended even if the 'Do Not Disturb' mode is activated on your phone. 'Do Not Disturb' will only silence your incoming phone calls, messages, and notifications.
Sleep Mode, on the other hand, is a different feature that is available on devices like the Apple Watch. Sleep Mode enables certain sensors and metrics like pulse oximetry, breathing rate, and body temperature. Pulse oximetry is a non-invasive method of measuring the oxygen saturation levels in the blood. This is usually done by attaching a small device to a person's finger, earlobe, or toe. It is a useful tool for understanding breathing and lung function during sleep. Pulse oximetry readings can be impacted by factors such as hair, skin temperature, and vascularity.
Wearable devices like smartwatches and rings are now commonly used to track sleep parameters. These devices use sensors like accelerometry and PPG to measure pulse rate variability and estimate sleep stages. PPG measures pulse rate variability, which serves as a proxy for HR variability (HRV) and allows for the estimation of sleep stages, as each stage is marked by distinct HR and HRV signatures. PPG pulse rate variability also provides a surrogate marker for autonomic nervous system function.
In addition to PPG, other sensors like skin conductance and temperature sensors are also used in wearable devices to enable the measurement of sleep alongside other health markers. For example, the circul+ Wellness Ring uses pulse oximetry to track blood oxygenation (SpO2), heart rate (HR), oxygen desaturation index (ODI), and sleep stages. It also monitors skin temperature to provide insights into sleep quality.
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Frequently asked questions
Yes, Sleep Cycle will still work as intended even if 'Do Not Disturb' mode is activated.
Sleep Mode comes with its own watch face and requires you to unlock your watch to use it, whereas Do Not Disturb mode only silences notifications. Sleep Mode also enables the tracking of certain sensors and metrics such as pulse oximetry, breathing rate, and body temperature.
To set up 'Do Not Disturb' mode, open your Control Center, tap Focus, then tap Sleep. You can also set up a schedule for your Sleep Focus in the Health app on your iPhone.











































