Sleeping with Mac OS X 10.4

One really positive great feature of OS 10.4 Tiger is the 'Sleep' function. Any time I want to leave the computer for an extended period of time all I have to do is click the Apple Menu and choose 'Sleep'. Within moments everything is quiet and my G4 emits a pulsating white light thru the power button. I have told the Mac to sleep and awaken many times over the last week and it hasn't failed me yet so I am thoroughly impressed and satisfied in that regard - not a single reboot!