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Sleeper 3.5


St. Clair Software Releases Sleeper 3.5, adding multiple configurations,
processor cycling, and more

(Youngstown, OH — September 4, 2001) St. Clair Software has released
version 3.5 of Sleeper, its popular screen saver and energy-saving utility.

Sleeper delivers a host of energy-saving features that work on nearly every
Macintosh, from the Mac Plus to the latest iMacs, PowerBooks, and G4
PowerMacs. Sleeper provides more options, greater control, and broader
hardware compatibility 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, flexible, and reliable
power management.

Version 3.5 delivers a host of new features and fixes, including the
ability to save multiple setting configurations, improved reliability on G4
PowerMacs, powering down of LCD screens, and options to control processor
cycling. Highlights include:

– 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.
– Controls have been added to allow 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 new options to control processor cycling.
– 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.

Additional information and download links can be found at the following

Details about Sleeper 3.5 (with download links):

Sleeper product page:

Direct download (808K):

FTP link to Sleeper 3.5 (808K):

Sleeper 3.5 is free to registered users of earlier versions of Sleeper.


Sleeper is a control panel that spins down the hard disk, dims the screen,
and powers off Energy Star compliant monitors on any Macintosh. Users
simply select desired sleep times in the control panel and Sleeper takes
care of the rest. Preferences can also be set to have Sleeper
password-protect, sleep, or shut down a Mac after a period of inactivity,
and a hotkey can be used to put the Macintosh to sleep on demand.

Sleeper offers many advantages over Apple’s bundled Energy Saver control
panel, even on newer Macintoshes. It works more consistently than Energy
Saver in many configurations, provides more precise control, includes more
customization options, and supports disk sleep on all hard drives, not just
those supplied by Apple. Sleeper also offers password protection and
coexists intelligently with Energy Saver for users that want to “mix and
match” features from both utilities. And because Sleeper can work without
help from Energy Saver or the Mac’s built-in power management code, it
works even when Energy Saver doesn’t, supporting everything from the Mac
Plus to the latest PowerMacs and iMacs.

Sleeper will operate on any Macintosh running System 7 or higher, including
Mac OS 9.2.1, and is accelerated for PowerPC. It is distributed as
shareware, requiring a $25 registration fee for use beyond a free 30 day
trial period.

Further information about Sleeper can be found at:


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