InsomniaX Logo

Version: 0.5/1.3.5/2.1.8

It always has been a missing feature: disabling the sleep mode on a Apple Laptop. Who does not want to use it as a big juke-box or go warwalking. The best looking server ever, especially at about one inch height. This small utility is what you will want, this small utility acts as a wrapper to the Insomnia kernel extension.


InsomniaX was coded as a way to test the use of Insomnia in MultiAlarm, how ever becuase it held more potential in other areas and would allow users to use this handy feature with out buying a program like “Sleepless”

InsomniaX then recieved later updates which enabled a inbuilt “Jiggler” feature along with new icons and cleaner interfaces which included a log viewer to help diagnose the use of Insomnia

InsomniaX is slowly developing into a viable tool as it has completed its task in testing Insmonia but is being kept as a active project to keep as a alterative to “Sleepless”


Note: InsomniaX is PASSIVE!
This means that unless another program has interfered with the operations of InsomniaX, once you reboot your system it will be completely removed from the system until you start InsomniaX and activate its features.

If after a reboot or during boot you exhibit issues, these are not related to InsomniaX. (The only exception is if you have InsomniaX in your startup items for your login)

Uninstalling/Repairing InsomniaX
The most common ticket in the help desk regarding issues with InsomniaX or requesting instructions on how to remove InsomniaX, below is a simple step list of what is required to completely wipe out InsomniaX. If any problems exist after removing InsomniaX it should not be related to Insomnia as it works as a passive changing, in other words once its unloaded all changes are moved (Especially after a reboot any trace should be gone)

  1. Reboot the machine
  2. Ensure InsomniaX is not running
  3. Enter in terminal : defaults delete com.semaja2.InsomniaX (use net.semaja2.insomniax for InsomniaX 2.1 +)
  4. Delete ~/Library/Application Support/InsomniaX (Use the terminal command “sudo rm -rf ~/Library/Application\ Support/InsomniaX”
  5. Delete /Applications/
  6. If reinstalling download latest version from MacUpdate

463 thoughts on “InsomniaX

  1. Hi Everyone,

    I would strongly advise against installing the very outdated InsomniaX 2.0 which contains many bugs, and would require lowering the security on a Yosemite system to run correctly.

    InsomniaX 2.1.8 has been tested on Yosemite and works 100%


  2. Alex

    Hello Andrew,

    I’ve been using Insomniax for a little while. I want to be able to run with the lid closed while not plugged into AC to maximize battery life by avoiding constant charging. I can get Insomniax to do that but it always takes a couple of tries. Namely, when I first select “Disable Lid Sleep” and unplug the laptop, it usually still goes to sleep. Also, if I select “Disable Lid Sleep” and even “Disable Idle Sleep” but the monitor goes to sleep while I’m not using the laptop, getting the screen to turn on requires plugging the laptop into AC again. When it wakes up, I see the “Disable…” settings still selected in the menu but unplugging AC will immediately put it back to sleep. To get it to work off AC requires unselecting “Disable Lid Sleep” (which immediately puts it to sleep even while plugged into AC), waking it up again, and selecting “Disable Lid Sleep” again.

    I have no special default settings. Perhaps, I’m missing something simple or is there something that must be unique to my setup (MacBook Pro (Retina, 15-inch, Late 2013) running Yosemite 10.10.1 (14B25))?

    Thanks for any help with getting this to work reliably.

  3. AL

    In my setup (macbook pro non-retina 13″) w/ Yosemite 10.10.1 InsomniaX doesn’t work. It always go sleep… On Mavericks it did work properly bu after the upgrade I doesn’t… I upgraded to 2.1.8 wit no luck

  4. BarryMcCockner

    Its very rare an app works the way you want to, however this app is an exception.
    It does exactly what its intended to do.
    Good job dev’s.

    – Yosemite MBA 11″

  5. Robin

    Do you have an explanation of all the settings for InsomniaX? They might seem obvious, but I’m a bit confused! I am trying to allow my macbook to serve a music player, while the lid is closed. I would have thought that setting the ‘disable lid sleep’ would do the trick; but it seems to be working with the ‘disable idle sleep’. Also- what does CPU Safety mean? I’m not a techie and very new to MAC.

    Thank you.

  6. sysnetarea

    I installed this tool yesterday and it’s still the best ever. I run it on OS X Yosemite 10.10.1 without trouble. Thanks bunches for the very good work and keep going.

    How can I donate something? Do you use PayPal?

  7. Steve

    Hi, love this app. Found a little bug though: When I reopen the lid and “Disable Lid Sleep” is checked, my keyboard backlit does not automatically re-light up until I change the screen brightness with F1/F2.

  8. victor

    estoy trabajando en edicion de fotos y estoy conectado a un monitor mac y quiero cerrar la pantalla de mi macbook y y no funcion por que se me apaga el monitor

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