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SleepLess is used to prevent the computer from going to sleep without changing system settings.

It updates system activity timer once per some interval.

Features:

  • No Dock icon
  • One click activation/deactivation
  • prevent sleep with lid closed

    What's New

    Version 2.8.3:
    • Application is now code-signed for OS X 10.8 Gatekeeper compatibility.

    Requirements

    Mac OS X 10.6 or later, Intel 64

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    SleepLess User Discussion

    Nobody has reviewed or commented on this app yet. Add your own comment and get a discussion going!
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    iodrew Member IconComment+29
    iodrew
    +1

    $10? There are multiple free programs that accomplish this task.

    Also, there is a new terminal command for sleep prevention, it's called "caffeinate" - search for it.

    Sorry for anyone wasting the $.

    Reply0 replies
    Version 2.8.3
    unfrostedpoptart Member IconReview+0
    unfrostedpoptart
    +0

    I've been looking for something like this for a long time to stop my Macbooks from turning off when the screen was closed!

    It looks like everything works as advertised on my 2011 MBA / 10.7.3. However, I think it could be so much better with a new mode that is a mix of
    "Prevent sleep with lid closed, displays will sleep"
    and
    "Allow sleep timer"

    It would act like the first, but also specify a timer so if you forget it too long, it will eventually go to sleep. The timer would start counting when the lid was closed and never be in effect when the lid was open.

    This way, I can close the computer to carry it around, but if I don't open it after a specified amount of time, it will sleep. I think a lot of people would like this mode since it keeps the computer awake (including network connections) if you're just taking the laptop around your home or office. However, it will sleep after some time in order to save battery power and prevent overheating.

    Reply0 replies
    Version 2.8.2
    dieselman Member IconReview+1
    dieselman
    +0

    It works well with OSX10.7.2 but I prefer No Sleep.

    Reply0 replies
    Version 2.8.2
    adcurtin Member IconReview+1
    adcurtin
    +1

    An option to set a keyboard shortcut to enable / disable would be great. (like InsomniaX has).

    Also, I found a usability bug in the program. I use a side dock on the left side of the screen; when first launching the program it put some windows under the dock, and in order to move or close them, I had to autohide the dock. Moving the default position for these windows further from the edge of the screen would easily solve this problem.

    Reply0 replies
    Version 2.8.1
    Amazon Member IconComment+37
    Amazon
    +0

    I am trying to download upgrade for OS 10.6.7 trough "MacUpdate Desktop" it would not download ... I am trying to download from here it does not download either ... weird ...
    Same problem from developer www ... weird, weird ...

    Reply0 replies
    Version 2.8.1
    Dingo710 Member IconReview+1
    Dingo710
    +1

    Sleepless is perfectly workinng on my MBP I bought 10days ago.
    Insomnia & Caffeinne doesn't work.

    Reply0 replies
    Version 2.8
    Talibunny Member IconReview+1
    Talibunny
    +1

    same as insomniaX, this app doesn't work on new mbp models of 2011.
    when I close the lid, all of my mbp's go to sleep.
    completely useless.
    it used to work on my older mbp's, also running OSX 10.6.7.

    Reply0 replies
    Version 2.8
    Atalantia Member IconComment+44
    Atalantia
    +3

    Why not just take Caffeine for free? Works perfect with one click.

    Reply1 reply
    Version 2.8
    Mathwhiz
    +1

    Caffeine is great - I use it in on my iMac. But if you need to operate lid-closed on a MacBook Air (Late-2010) say, and also allow its display to sleep during, then SleepLess is the only game in town AFAIK...

    aljuk Member IconComment+69
    aljuk
    +2

    Why not just change the system settings? (that's what they're there for). It won't cost you anything either...

    Reply1 reply
    Version 2.5.2
    Vtowel
    +2

    I challenge you to find a way in OS X system settings to prevent your laptop from going to sleep when you close the lid. :-) I think that's what makes this program stand out.

    daohead Member IconComment+2
    daohead
    +2

    Consider Caffiene (http://www.macupdate.com/info.php/id/24120). Does it nice and simple and for free.

    Reply2 replies
    Version 2.3
    ssnickerer
    +1

    was just going to say the same thing

    Vtowel
    +4

    I tried Caffeine, and when it's activated my laptop still goes to sleep when I close the lid. Whereas SleepLess has an option to prevent this from happening.

    user icon+0
    Joshhoole
    Version 2.8.2
    user icon+56
    Liam_ARTH
    Version 2.8.2
    user icon+4
    Strulf
    Version 2.8
    > 3 15

    Ratings

    Overall
    (15)
    Current Version (2.x)
    (8)

    Details

    Downloads 100,233
    Version Downloads 47,279
    Type Utilities / System
    License Shareware
    Date 19 Nov 2012
    Platform Intel 64 / OS X / Intel 32
    Price $9.50
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