
Pressing the Sleep/Wake button on your iPhone locks the phone and puts it to sleep. This saves the battery, prevents accidental touches, and allows you to still receive calls and messages. Holding the Sleep/Wake button for about 4 seconds will bring up a slider to power off the device. To restart the device, hold the Sleep/Wake button again until the Apple logo appears. On newer iPhones without a Home button, simultaneously press and hold the Side button and either Volume button until the sliders appear, then drag the Power Off slider.
| Characteristics | Values |
|---|---|
| Pressing the Sleep/Wake button | Locks the iPhone |
| Puts the display to sleep | |
| Saves battery | |
| Prevents accidental touches | |
| Allows calls, messages, and notifications | |
| Enables music and volume adjustments | |
| Holding the Sleep/Wake button | Powers off the iPhone |
| Holding the Sleep/Wake and Home buttons | Restarts the iPhone |
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What You'll Learn

Pressing the sleep button locks the iPhone
To shut down an iPhone, the Sleep/Wake button needs to be pressed and held for a few seconds until the slider appears. Then, the slider is dragged to the centre of the screen to turn off the device. On newer iPhone models without a Home button, the Side button and either Volume button need to be pressed simultaneously until the sliders appear, and then the Power Off slider is used to shut down the device.
Pressing and holding the Sleep button for about 4 seconds will dim the screen and allow users to close an open app by pressing and holding the Home button. This is different from shutting down the iPhone, as the device is still on and running in the background. A restart or reset of the iPhone can be achieved by pressing and holding the Sleep button until the Apple logo appears. This can help fix issues with unresponsive apps or a slow device, but it will not close any apps running in the background.
The Sleep button is also used in combination with the Home button to restart the iPhone or iPad. By simultaneously pressing and holding both buttons for about 8-10 seconds until the Apple logo appears, users can restart their device. This is different from the Sleep function, which only locks the screen and does not require a restart to wake the device.
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The iPhone will shut down if you hold the sleep button
The iPhone's Side button, previously known as the Sleep/Wake button, is located on the upper right side or top of the device. Pressing this button once puts the iPhone to sleep, locking the device and turning off the display to save battery power. However, this action does not shut down the iPhone, as it continues to run in the background, allowing users to receive calls, messages, and notifications.
To shut down an iPhone, users need to press and hold the Sleep/Wake button for about 4 seconds. This action is different from simply putting the device to sleep. When holding the Sleep/Wake button, the screen dims, and a red slider appears, prompting the user to "slide to power off." By dragging this slider to the right, the iPhone will completely turn off.
On newer iPhone models without a Home button, the process involves simultaneously pressing and holding the Side button and either Volume button until the sliders appear. Then, users can drag the Power Off slider to the right to shut down the device.
It is important to note that shutting down an iPhone is not a regular habit that users need to adopt. However, if the device is unresponsive or misbehaving, a restart can help clear issues. Additionally, for iPhone users who do not plan to use their device for an extended period, a complete shutdown may be beneficial.
In summary, holding the Sleep/Wake button on an iPhone will initiate the process of shutting down the device, and dragging the subsequent slider will turn it off. This action is distinct from putting the iPhone to sleep, which is done by briefly pressing the same button.
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The iPhone restarts if you hold the sleep button and release at the Apple logo
The iPhone's Side button, previously known as the Sleep/Wake button, is located on the upper right side or top of the device. Pressing this button once puts the iPhone to sleep, locking the device and turning off the display to save battery.
However, if you hold down the Sleep/Wake button for several seconds, you can trigger a restart or shutdown of your iPhone. Specifically, holding the Sleep/Wake button for around 4 seconds will cause the screen to dim and a red slider to appear. At this point, you can swipe the slider to power off the iPhone completely.
If you continue to hold the Sleep/Wake button after the red slider appears, you will release it at the Apple logo, initiating a restart of your iPhone. This action is similar to restarting a desktop computer, but it won't close any background apps, and you may lose unsaved work.
Restarting your iPhone can be useful if it's feeling slow or unresponsive, as it often clears issues without requiring a full shutdown. It's worth noting that newer iPhone models without a Home button require holding the Side button and either Volume button simultaneously to trigger the power-off sliders and initiate a restart.
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The sleep button is also called the Side button
The Sleep/Wake button, which is used to put your iPhone to sleep, is also called the Side button. On most current iPhone models, the Side or Sleep/Wake button is located on the upper right side or the upper right top of the device. Pressing the button will turn your display on and off.
To put your iPhone to sleep, simply press the Sleep/Wake button. This will lock your phone and darken the screen, but it will not shut off the device. Your phone will still be on and operating, and you can still receive phone calls and text messages. Putting your phone to sleep saves battery and prevents accidental touches or "butt calls" when the device is in your pocket or handbag.
On iPhone 6 and later, as well as on iPhone SE (2nd generation) and later, the Side button is used to wake the device or put it to sleep. On older models, such as the iPhone SE (1st generation) and earlier, the top button is used instead.
In addition to putting your iPhone to sleep, the Side button can also be used to shut down and restart your device. To do this, press and hold the Side button (and the Volume button on newer iPhones) until the red slider appears on the screen. Drag the slider to the centre of the screen to turn off your iPhone. To restart the device, press and hold the Side button until the Apple logo appears.
It is worth noting that the steps for shutting down and restarting your iPhone may vary depending on whether your device has a Home button. For iPhones with a Home button, press and hold the Sleep/Wake button until the red slider appears, then drag the slider to turn off the device. For newer iPhones without a Home button, simultaneously press and hold the Side button and either Volume button until the sliders appear, and then drag the Power Off slider.
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Holding the sleep button can close unresponsive apps
To close an unresponsive app, press and hold the Sleep/Wake button for about 4 seconds until a red slider appears on the screen. The screen will dim, but the open app will still be visible. At this point, release the Sleep/Wake button and then press and hold the Home button. Keep holding it until the app closes and you return to the home screen.
If your iPhone continues to be unresponsive or slow, you may need to restart it. To do this, press and hold the Sleep/Wake button again for about 4 seconds. Then, swipe your finger across the slider to power off the device. Press and hold the Sleep/Wake button again until the Apple logo appears to turn it back on.
It is important to note that restarting an iPhone will not close any apps running in the background. Any unsaved work, such as a draft email, will be lost. Therefore, it is recommended to only restart your iPhone when necessary, such as when apps are unresponsive or the device feels slow.
In summary, holding the sleep button can be an effective way to close unresponsive apps on an iPhone. However, if issues persist, a restart may be required.
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Frequently asked questions
Holding the sleep button, also known as the Side or Sleep/Wake button, on an iPhone with iOS 11 for about 4 seconds will bring up a slider that allows you to turn off the device.
Press and hold the Sleep/Wake button until the slider appears, then drag the slider to the right to turn off your iPhone.
Press and hold the Sleep button for about 4 seconds, swipe your finger to power off the device, then press and hold the button again until the Apple logo appears. Alternatively, you can simultaneously press and hold the Sleep/Wake button and the Home button for 8-10 seconds until the Apple logo appears.



































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