Sleep Timer For Mac Os

Sleep Timer For Mac Os 10.10
Sleep Timer For Mac Os Catalina

Name

There you can set a time and day (weekends or weekdays, too) that the Mac will start up or wake, as well as a time and day(s) when it will restart, shut down or sleep. As useful as the schedule. Put your Mac to sleep with style. Easily schedule the sleep interval from your menu bar. Press any key to defer sleep. Select exactly how much. Download, it's free. Requires OS X 10.10 (Yosemite) Check out our apps: Subtitles Watch This MKV To MP4 Sleep Timer, an app. When your Mac is plugged into a power adapter, Power Nap can also do Time Machine backups. Allow power button to put computer to sleep. Allows you to press the power button to put your computer to sleep. Prevent computer from sleeping automatically when the display is off. Prevents the computer from going to sleep when the display sleeps.

pmset — manipulate power management settings

Synopsis

Description

pmset manages power management settings such as idle sleep timing, wake on administrative access, automatic restart on power loss, etc.

Note that processes may dynamically override these power management settings by using I/O Kit power assertions. Whenever processes override any system power settings, pmset will list those processes and their power assertions in −g and −g assertions. See caffeinate(8).

Setting

pmset can modify the values of any of the power management settings defined below. You may specify one or more setting & value pairs on the command-line invocation of pmset. The −a, −b, −c, −u flags determine whether the settings apply to battery ( −b ), charger (wall power) ( −c ), UPS ( −u ) or all ( −a ).

Use a minutes argument of 0 to set the idle time to never for sleep disksleep and displaysleep

pmset must be run as root in order to modify any settings.

Settings

displaysleep - display sleep timer; replaces ’dim’ argument in 10.4 (value in minutes, or 0 to disable)
disksleep - disk spindown timer; replaces ’spindown’ argument in 10.4 (value in minutes, or 0 to disable)
sleep - system sleep timer (value in minutes, or 0 to disable)
womp - wake on ethernet magic packet (value = 0/1). Same as 'Wake for network access' in the Energy Saver preferences.
ring - wake on modem ring (value = 0/1)
powernap - enable/disable Power Nap on supported machines (value = 0/1)
proximitywake - On supported systems, this option controls system wake from sleep based on proximity of devices using same iCloud id. (value = 0/1)
autorestart - automatic restart on power loss (value = 0/1)
lidwake - wake the machine when the laptop lid (or clamshell) is opened (value = 0/1)
acwake - wake the machine when power source (AC/battery) is changed (value = 0/1)
lessbright - slightly turn down display brightness when switching to this power source (value = 0/1)
halfdim - display sleep will use an intermediate half-brightness state between full brightness and fully off (value = 0/1)
sms - use Sudden Motion Sensor to park disk heads on sudden changes in G force (value = 0/1)
hibernatemode - change hibernation mode. Please use caution. (value = integer)
hibernatefile - change hibernation image file location. Image may only be located on the root volume. Please use caution. (value = path)
ttyskeepawake - prevent idle system sleep when any tty (e.g. remote login session) is ’active’. A tty is ’inactive’ only when its idle time exceeds the system sleep timer. (value = 0/1)
networkoversleep - this setting affects how OS X networking presents shared network services during system sleep. This setting is not used by all platforms; changing its value is unsupported.
destroyfvkeyonstandby - Destroy File Vault Key when going to standby mode. By default File vault keys are retained even when system goes to standby. If the keys are destroyed, user will be prompted to enter the password while coming out of standby mode.(value: 1 - Destroy, 0 - Retain)

Getting

−g (with no argument) will display the settings currently in use.
−glive displays the settings currently in use.
−gcustom displays custom settings for all power sources.
−gcap displays which power management features the machine supports.
−gsched displays scheduled startup/wake and shutdown/sleep events.
−gups displays UPS emergency thresholds.
−gps / batt displays status of batteries and UPSs.
−gpslog displays an ongoing log of power source (battery and UPS) state.
−grawlog displays an ongoing log of battery state as read directly from battery.
−gtherm shows thermal conditions that affect CPU speed. Not available on all platforms.
−gthermlog shows a log of thermal notifications that affect CPU speed. Not available on all platforms.
−gassertions displays a summary of power assertions. Assertions may prevent system sleep or display sleep. Available 10.6 and later.
−gassertionslog shows a log of assertion creations and releases. Available 10.6 and later.
−gsysload displays the 'system load advisory' - a summary of system activity available from the IOGetSystemLoadAdvisory API. Available 10.6 and later.
−gsysloadlog displays an ongoing log of lives changes to the system load advisory. Available 10.6 and later.
−gac / adapter will display details about an attached AC power adapter. Only supported for MacBook and MacBook Pro.
−glog displays a history of sleeps, wakes, and other power management events. This log is for admin & debugging purposes.
−guuid displays the currently active sleep/wake UUID; used within OS X to correlate sleep/wake activity within one sleep cycle. history
−guuidlog displays the currently active sleep/wake UUID, and prints a new UUID as they’re set by the system.
−ghistory is a debugging tool. Prints a timeline of system sleeplwake UUIDs, when enabled with boot-arg io=0x3000000.
−ghistorydetailed Prints driver-level timings for a sleep/wake. Pass a UUID as an argument.
−gpowerstate [class names] Prints the current power states for I/O Kit drivers. Caller may provide one or more I/O Kit class names (separated by spaces) as an argument. If no classes are provided, it will print all drivers’ power states.
−gpowerstatelog [-i interval] [class names] Periodically prints the power state residency times for some drivers. Caller may provide one or more I/O Kit class names (separated by spaces). If no classes are provided, it will log the IOPower plane’s root registry entry. Caller may specify a polling interval, in seconds with -i <polling interval>; otherwise it defaults to 5 seconds.
−gstats Prints the counts for number sleeps and wakes system has gone thru since boot.
−gsystemstate Prints the current power state of the system and available capabilites.
−geverything Prints output from every argument under the GETTING header. This is useful for quickly collecting all the output that pmset provides. Available in 10.8.

SAFE SLEEP ARGUMENTS

hibernatemode supports values of 0, 3, or 25. Whether or not a hibernation image gets written is also dependent on the values of standby and autopoweroff

For example, on desktops that support standby a hibernation image will be written after the specified standbydelay time. To disable hibernation images completely, ensure hibernatemode standby and autopoweroff are all set to 0.

hibernatemode = 0 by default on desktops. The system will not back memory up to persistent storage. The system must wake from the contents of memory; the system will lose context on power loss. This is, historically, plain old sleep.

hibernatemode = 3 by default on portables. The system will store a copy of memory to persistent storage (the disk), and will power memory during sleep. The system will wake from memory, unless a power loss forces it to restore from hibernate image.

hibernatemode = 25 is only settable via pmset. The system will store a copy of memory to persistent storage (the disk), and will remove power to memory. The system will restore from disk image. If you want 'hibernation' - slower sleeps, slower wakes, and better battery life, you should use this setting.

Please note that hibernatefile may only point to a file located on the root volume.

STANDBY ARGUMENTS

standby causes kernel power management to automatically hibernate a machine after it has slept for a specified time period. This saves power while asleep. This setting defaults to ON for supported hardware. The setting standby will be visible in pmset −g if the feature is supported on this machine.

standbydelayhigh and standbydelaylow specify the delay, in seconds, before writing the hibernation image to disk and powering off memory for Standby. standbydelayhigh is used when the remaining battery capacity is above highstandbythreshold , and standbydelaylow is used when the remaining battery capacity is below highstandbythreshold.

highstandbythreshold has a default value of 50 percent.

autopoweroff is enabled by default on supported platforms as an implementation of Lot 6 to the European Energy-related Products Directive. After sleeping for <autopoweroffdelay> seconds, the system will write a hibernation image and go into a lower power chipset sleep. Wakeups from this state will take longer than wakeups from regular sleep.

autopoweroffdelay specifies the delay, in seconds, before entering autopoweroff mode.

UPS SPECIFIC ARGUMENTS

UPS-specific arguments are only valid following the −u option. UPS settings also have an on/off value. Use a -1 argument instead of percent or minutes to turn any of these settings off. If multiple halt conditions are specified, the system will halt on the first condition that occurs in a low power situation.

haltlevel - when draining UPS battery, battery level at which to trigger an emergency shutdown (value in %)
haltafter - when draining UPS battery, trigger emergency shutdown after this long running on UPS power (value in minutes, or 0 to disable)
haltremain - when draining UPS battery, trigger emergency shutdown when this much time remaining on UPS power is estimated (value in minutes, or 0 to disable)

Note: None of these settings are observed on a system with support for an internal battery, such as a laptop. UPS emergency shutdown settings are for desktop and server only.

SCHEDULED EVENT ARGUMENTS

pmset allows you to schedule system sleep, shutdown, wakeup and/or power on. 'schedule' is for setting up one-time power events, and 'repeat' is for setting up daily/weekly power on and power off events. Note that you may only have one pair of repeating events scheduled - a 'power on' event and a 'power off' event. For sleep cycling applications, pmset can schedule a 'relative' wakeup or poweron to occur in seconds from the end of system sleep/shutdown, but this event cannot be cancelled and is inherently imprecise.

type - one of sleep, wake, poweron, shutdown, wakeorpoweron
date/time - 'MM/dd/yy HH:mm:ss' (in 24 hour format; must be in quotes)
time - HH:mm:ss
weekdays - a subset of MTWRFSU ('M' and 'MTWRF' are valid strings)
owner - a string describing the person or program who is scheduling this one-time power event (optional)

POWER SOURCE ARGUMENTS

−g with a ’batt’ or ’ps’ argument will show the state of all attached power sources.

−g with a ’pslog’ or ’rawlog’ argument is normally used for debugging, such as isolating a problem with an aging battery.

Sleep Timer For Mac Os 10.10

OTHER ARGUMENTS

boot - tell the kernel that system boot is complete (normally LoginWindow does this). May be useful to Darwin users.
touch - PM re-reads existing settings from disk.
noidle - pmset prevents idle sleep by creating a PM assertion to prevent idle sleep(while running; hit ctrl-c to cancel). This argument is deprecated in favor of caffeinate(8). Please use caffeinate(8) instead.
sleepnow - causes an immediate system sleep.
restoredefaults - Restores Energy Saver settings to their default values. (Like clicking 'Restore Defaults' in Energy Saver GUI).
displaysleepnow - causes display to go to sleep immediately.
resetdisplayambientparams - resets the ambient light parameters for certain Apple displays.
dim - deprecated in 10.4 in favor of ’displaysleep’. ’dim’ will continue to work.
spindown - deprecated in 10.4 in favor of ’disksleep’. ’spindown’ will continue to work.

Examples

This command sets displaysleep to a 5 minute timer on battery power, leaving other settings on battery power and other power sources unperturbed.

pmset −b displaysleep 5

Sets displaysleep to 10, disksleep to 10, system sleep to 30, and turns on WakeOnMagicPacket for ALL power sources (AC, Battery, and UPS) as appropriate

pmset −a displaysleep 10 disksleep 10 sleep 30 womp 1

Restores the system’s energy settings to their default values.

For a system with an attached and supported UPS, this instructs the system to perform an emergency shutdown when UPS battery drains to below 40%.

pmset −u haltlevel 40

For a system with an attached and supported UPS, this instructs the system to perform an emergency shutdown when UPS battery drains to below 25%, or when the UPS estimates it has less than 30 minutes remaining runtime. The system shuts down as soon as either of these conditions is met.

pmset −u haltlevel 25 haltremain 30

For a system with an attached and supported UPS, this instructs the system to perform an emergency shutdown after 2 minutes of running on UPS battery power.

pmset −u haltafter 2

Schedules the system to automatically wake from sleep on July 4, 2016, at 8PM.

pmset schedule wake '07/04/16 20:00:00'

Schedules a repeating shutdown to occur each day, Tuesday through Saturday, at 11AM.

pmset repeat shutdown TWRFS 11:00:00

Schedules a repeating wake or power on event every tuesday at 12:00 noon, and a repeating sleep event every night at 8:00 PM.

pmset repeat wakeorpoweron T 12:00:00 sleep MTWRFSU 20:00:00

Prints the power management settings in use by the system.

pmset −g

Prints a snapshot of battery/power source state at the moment.

pmset −g batt

If your system suddenly sleeps on battery power with 20-50% of capacity remaining, leave this command running in a Terminal window. When you see the problem and later power and wake the computer, you’ll be able to detect sudden discontinuities (like a jump from 30% to 0%) indicative of an aging battery.

pmset −g pslog

Files

All changes made through pmset are saved in a persistent preferences file (per-system, not per-user) at /Library/Preferences/SystemConfiguration/com.apple.PowerManagement.plist

Scheduled power on/off events are stored separately in /Library/Preferences/SystemConfiguration/com.apple.AutoWake.plist

pmset modifies the same file that System Preferences Energy Saver modifies.

Darwin November 9, 2012 Darwin

Does your Mac go to sleep when you are downloading a file or backing it up? Do you want to keep your Mac from sleeping? Okay, there are three easy ways to do so. The first one is using the energy-saver feature, second is to use the terminal, and the third is using a third-party app. All of these methods are straightforward. So, let us dig right in and see how to stop your Mac from sleeping.

Prevent Your Mac from Sleeping Using Energy Saver

Click on the Apple logo from top-right → Click on System Preferences.
Click on Energy Saver.Note: If you are on a MacBook, you will see two tabs here: Battery and Power Adapter. You can follow steps 3 and 4 below for both Battery power and while your MacBook is charging.
Drag the Turn display off after slider to Never → Select Ok from the popup.
Next, tick the box for Prevent computer from sleeping automatically when the display is off.

Sleep Timer For Mac Os Catalina

Now, your Mac will not go to sleep. If you wish to turn off this feature, follow the above steps, and drag the slider to the left and set the time according to your preference. Now, you Mac will sleep after the set period of inactivity.

RELATED: How to Keep MacBook from Sleeping With Lid Closed

Prevent Mac From Sleeping Using Terminal App

Go to Applications folder → Utilities → and open Terminal.Or press Command (⌘) + Space Bar to open Spotlight Search and type Terminal.
Type one of the following Terminal commands according to your preference and hit the enter

caffeinate -d To prevent the display from sleeping
caffeinate -i To prevent the system from idle sleeping
caffeinate -m To prevent the disk from going idle
caffeinate -s Keep the Mac awake while it is plugged into AC power
caffeinate Now, your Mac will stay awake for as long as you leave the Terminal running. To stop this, use the keyboard shortcut Ctrl+C
caffeinate -t 1800 & Here 1800 is the time in seconds. You can set it to anything. Now your Mac will stay awake for this time duration

The above commands run as long as you leave the Terminal app running.

Using Third-party Apps

Download
Open the app and click on Next. You can read and click Next on all subsequent screens to learn more about this app.
Click on two half-circle icon (that looks like a pill) from the top menu bar.
Click on Indefinitely. Now you Mac will never sleep.
Now, Click on the Amphetamine app icon from the top menu bar and then click on End Current Session.

Other Apps That Prevent Your Mac From Sleeping

Amphetamine is potent (and popular). However, your choices are not limited. Some other great apps that keep your Mac from sleeping are:

That’s all, mate!

Signing off…

These were the easy ways to keep your macOS device from sleeping. Now you can peacefully continue to download big files, backup the Mac, or prevent the screen from dimming when you are not watching a video in full screen. I hope this tutorial was helpful, and you learned something new.

You may also like to take a peek at:

Which method are you going to use? System Preferences, any App, or Terminal? Please share your thoughts with us in the comments down below.

The founder of iGeeksBlog, Dhvanesh, is an Apple aficionado, who cannot stand even a slight innuendo about Apple products. He dons the cap of editor-in-chief to make sure that articles match the quality standard before they are published.

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