This page is a wiki. Please login or create an account to begin editing.

Sleeper 3.x

Your rating: None Average: 5 (3 votes)
Year released:
[www].se [ftp].se [mirror].us [mirror].de
sleeper-3.5.hqx (807.93 KB)
MD5: c139447dfc9cac10534bf1ff7fba3d29
For System 7.0 - 7.6 - Mac OS 9
[www].se [ftp].se [mirror].us [mirror].de
Sleeper_3.0.2_Installer.sit_.hqx (451.83 KB)
MD5: eee53fefe8058026074c2be6cf615c88
For System 7.0 - 7.6 - Mac OS 9
This app works with: SheepShaver, Basilisk II, Mini vMac

Product Description:

Sleeper delivers a host of energy-saving features that now work on nearly every Macintosh, from the Mac Plus to the latest iMacs and G4 PowerMacs. Sleeper provides more options, greater control, and broader hardwarecompatibility than Apple's Energy Saver control panel. This gives older Macs many of the energy saving features of Apple's newer hardware, and provides newer Macintoshes with more extensive and more flexible power management.Users have also reported that Sleeper has helped them overcome problems they've experienced with Apple's Energy Saver control panel. Sleeper's greater configurability, combined with its independence from many of the Mac's built-in power saving functions, allows them to avoid some of the common "insomnia" and "permanent sleep" problems that occur on iMacs and G3/G4 PowerMacs.

What's new in this version:

• Sleeper now saves multiple configuration settings and will automatically switch between configurations when running a PowerBook from battery or ac adapter. Configurations can also be changed manually from the Control Strip
• Buttons have been added to allow keyboard entry of any desired delay (1-999 minutes) for the screen saver, disk sleep, password activation, monitor power-down, sleep, and shutdown
• Sleeper now supports desktop LCD displays, such as the Apple Studio and Apple Cinema displays
• There are now options to control processor cycling
• Sleep capabilities in 7450-based G4 PowerMacs (G4/733 and above) are now properly recognized
• Sleeper now unmounts servers before going to sleep, avoiding Mac OS 9's warning about "losing network services" if the computer is put to sleep
• On PowerBooks, the Finder's Sleep command is now intercepted by Sleeper, just as it is on desktop Macs
• The "flash keyboard LED's when attention is required" feature now works with USB keyboards
• When Sleeper was installed, Disk First Aid would sometimes stop scanning a drive, complaining that the disk was in use. This has been fixed
• A conflict between Sleeper and Iomega Zip and Jaz drivers has been fixed. The problem could cause the Finder to freeze after waking up from sleep on some Macintoshes
• The expert options (cmd-option-click on the Help button) now include a switch that prevents Sleeper from changing the backlight brightness of LCD screens
• Sleep and wake-up are now more reliable on the PowerMac G4 and iMac DV
• A conflict has been fixed between Sleeper's passwords and Orange PC
• Sleeper no longer leaves the backlight turned off on PowerBooks if they crash or are restarted while the screen is dimmed
• Problems waking from sleep under OS 9 have been corrected
• The clocks on G4 PowerMacs no longer lose time when they're asleep
• Sleeper now supports ORB drives
• Sleeper will put machines to sleep even if the monitor is still powered up and undimmed

Architecture: 68k PPC

Requires Mac OS 7.1.2 or newer.


StrikerTheHedgefox's picture
by StrikerTheHedgefox - 2020, May 10 - 1:40am

This no longer seems purchasable, could someone share a key?

Vitoarc's picture
by Vitoarc - 2010, September 7 - 5:13pm

Your assumptions are correct. Now that wasn't too hard to figure out, was it? Tongue

Here's a link to the software I mentioned (before, in my previous comment, on this page, regarding power saving utilities Tongue ):

IIGS_User's picture
by IIGS_User - 2010, September 7 - 5:00pm

We have a utility on this site similar to this but it didn't work for me.

Confusing sentence. Who is we, who is me? Assume, 'we' means simply this site, 'me' means the author if this page.

Vitoarc's picture
by Vitoarc - 2010, September 7 - 3:40pm

This is still available for $25. Considering what it does, and it does it VERY well, I think it's worth it. Save your SCSI drives and save energy, especially if you use a CRT like I do.

30 Day Free Trial, download here:

Screen savers keep your HD active so they need to be disabled. Also any other apps that access your HD during idle time, such as Alladin's Space Saver. If Space Saver is turned on it will wake up your disk defeating the purpose of Sleeper.

We have a utility on this site similar to this but it didn't work for me. This one works great however.

In case the link for the purchase is broken: