Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

On Windows 8, in the "Advanced Power Settings" (even though they're not that advanced), when you expand "Power buttons and lid," there is an option called "Sleep button action." Where is this "sleep button"? I can't find it anywhere on the laptop (a Dell Inspiron 15z) and when I search for it, not many people apparently care about it. Where is it?enter image description here

Here are some pictures of places on the keyboard I think it might be:enter image description hereenter image description hereenter image description here

share|improve this question
This is normally the power button provided you have declared your powered button should behave as such. – Ramhound Sep 30 '13 at 12:50
Yes but as you can see in my picture "Power button action" and "Sleep button action" are different "actions." This indicates to me they are 2 different buttons. – trysis Sep 30 '13 at 14:19
This means your laptop does not have a Sleep button. You can also simply configure your power button to place your computer to sleep and/or go to sleep when the lid is closed. – Ramhound Sep 30 '13 at 14:41
You are saying that because Windows claims there is a separate button for sleeping and power off, that there is not a different button for sleeping and power off? – trysis Sep 30 '13 at 16:04
That is correct, some computers or keyboard have it some do not, it can also be assigned. . . I use this: In win7 if you toss this into a shortcut , you can make a sleep icon. C:\Windows\System32\rundll32.exe powrprof.dll,SetSuspendState I do not know if it works for 8 but it works great here. – Psycogeek Oct 1 '13 at 4:42
up vote 2 down vote accepted

That is correct, some computers or keyboard have it some do not, it can also be assigned. . . I use this: In win7 if you toss this into a shortcut , you can make a sleep icon. C:\Windows\System32\rundll32.exe powrprof.dll,SetSuspendState I do not know if it works for 8 but it works great here.
– Psycogeek Oct 1 '13 at 4:42"

Works on Windows 10, 01/30/16, but to change the Icon to something useful, insert this


in the "Look for Icons in this file window" to find the usual suspects to select from. Nothing sleepy-looking in mine so I used a red slashed circle and renamed SLEEP. Thanks!

share|improve this answer
Danger! rundll32 is deprecated. Also, that command will cause the computer to hibernate, not sleep, if hibernation is enabled. I suggest using the Sysinternals PsShutdown tool instead. – Ben N Jan 31 at 18:12

Some keyboards (usually multimedia keyboards) and laptops have a “sleep key” (figure 1) that is the equivalent of using the Sleep command in the Start menu or closing a laptop lid. It can have a text label or not and have one of several different icons on the key:

  • Sleep
  • zz
  • / 🌙

On laptops, it is often one of the function keys used in conjunction with the Fn key (figure 2).

Some keyboards even have a power key (figure 3).

In your case, the Dell Inspiron 15z does not have a Sleep key (though you could use an external keyboard that does).

Figure 1: Microsoft keyboard with (labeled) Sleep key

Photo of Microsoft keyboard with Sleep key

Figure 2: Acer laptop with the zz key on F4 (used with Fn):

Photo of Acer laptop with Sleep key on F4

Figure 3: Dell keyboard with and keys

Photo of Dell keyboard with Sleep and Power keys

share|improve this answer
I guess that means my computer doesn't have a sleep button. See my pictures in my edited post. – trysis Oct 1 '13 at 14:13
No, ’fraid not. The function keys F8 and up control media playback and volume. F1 = Internal/External Monitor toggle, F2 = Wireless Radio On/Off, F3 = Touchpad On/Off, F4/F5 = Screen Brightness Up/Down, F6 = Backlight Toggle. I don’t know what the silver keys are, but they might be system button (like the power button) as opposed to keyboard keys; they might also be Windows 8-specific keys. – Synetech Oct 1 '13 at 19:23
The one with the start is probably “Favorites” and the one with the gears probably opens the Control Panel. There was no mention of them in the manual, but you could try pushing them to find out what they do, though I doubt any of them are a sleep key. :-| – Synetech Nov 29 '13 at 4:06
One opens some kind of settings menu. When the screen is off the button with the star & rectangle turns it back on but it doesn't do anything when the screen is on. No idea what the 3rd one is. – trysis Nov 30 '13 at 18:56
That’s crazy; I would expect better logic and support from Dell. :-/ – Synetech Nov 30 '13 at 21:42

I have Dell Inspiron 15 3542 touch. As mentioned earlier, there is no dedicated Sleep button. But the Fn + Insert combination does the trick!

share|improve this answer
Thanks, Logan. Apparently this is the correct answer for all Inspiron 15s, but it took me forever to find. – Kittsil May 22 at 8:14

On desktop computers many keyboards have a dedicated "Sleep"-button. Normally laptops don't but they might have a Fn-shortcut to the sleep mode.

I'm looking at a really old Dell where it is Fn + Esc. And sometimes it is Fn + F5. (Look for the "Sleep" or "Suspend" text below the keys.)

Historically Fn + Esc is used for "Suspend/Sleep" mode for a lot of notebooks so even if it's not on the keyboard itself you could try it.

share|improve this answer

No sleep button that I can see, but Dell says: Turning off your computer – Windows 8 To turn off your computer: 1. Swipe from the right edge of the screen (or if you are using a mouse, point to the upper-right corner of the screen), and then click Settings. 2. Tap or click Power and then choose Shut down. NOTE: You can also choose to put your computer in sleep or hibernate state.

The manual that tells you the keyboard shortcuts on the 15z is at

share|improve this answer
Maybe by saying "sleep & power buttons", they didn't mean buttons on the keyboard, but these buttons. – trysis Oct 1 '13 at 15:15

By random experimentation with my Inspirion I figured out that fn+esc makes the computer sleep

share|improve this answer
This is a repeat of information in Rik's answer. – fixer1234 Mar 4 at 4:52

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .