SleepLess
SleepLess
2.9.0

2.8

SleepLess free download for Mac

SleepLess

2.9.0
29 June 2015

Prevent your Mac from going to sleep.

Overview

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

Warning! Using your Mac with closed lid can lead to serious system heat problems!

Features
  • Disable sleep with lid closed
  • Safe Sleep (Hibernate) with one click
  • One click activation / deactivation
  • Schedule deactivation
  • Menu icon with commands menu
  • No processor time waste
  • Gatekeeper enabled

What's new in SleepLess

Version 2.9.0:
  • Application and kernel extension used are now code-signed for full OS X 10.10 compatibility

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41 SleepLess Reviews

See all

Rate this app:

Atalantia
09 May 2010

Most helpful

Why not just take Caffeine for free? Works perfect with one click.
Like (3)
Version 2.8
tcw3commercial
01 January 2016
Info says works on OS 10.8 and up.. Paid the money via PayPal. Installed Sleepless v2.9.0. It didn't work on El Cap 10.11.2 (i.e., MBP still went to sleep with lid closed). E-Mailed developer. Never heard back. Oh well, live and learn! Does anyone have another software solution that works on El Cap to suggest instead? Thank you.
Like
Version 2.9.0
ookrit
23 February 2015
Is this application really work ? I don't even have this application in my menu bar, Plus, i want to delete it completely BUT the floating notice always ON !!!
Like
Version 2.8.3
1 answer(s)
klara-posadova
klara-posadova
24 February 2015
I have the same problem... what can I do with it?
Like
iodrew
19 November 2012
$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 $.
Like (1)
Version 2.8.3
unfrostedpoptart
10 April 2012
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.
Like
Version 2.8.2
dieselman
05 November 2011
It works well with OSX10.7.2 but I prefer No Sleep.
Like
Version 2.8.2
adcurtin
20 June 2011
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.
Like (1)
Version 2.8.1
Amazon
20 May 2011
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 ...
Like
Version 2.8.1
Dingo710
15 April 2011
Sleepless is perfectly workinng on my MBP I bought 10days ago. Insomnia & Caffeinne doesn't work.
Like (1)
Version 2.8
Talibunny
28 March 2011
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.
Like (1)
Version 2.8
Atalantia
09 May 2010
Why not just take Caffeine for free? Works perfect with one click.
Like (3)
Version 2.8
1 answer(s)
mathwhiz
mathwhiz
30 January 2011
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...
Like (1)