Gertsy, I don't believe Amiga OS or the X5K itself at this point has any adjustable sleep management, nor do I know if something like that is being worked on by the powers to be. At this point I have my screen blanker come on.... and the TV I use has its own built in screen saver too so when it must detect no use the TVs screen saver will kick on and after that, the TV actually shuts off. I have to then turn my TV back on to get video again. Not sure how it would behave with a monitor. So I guess something video wise at least allows the TV to shutoff after x.xx of no use... Maybe AmigaKit can chime in here and let you know what the X5K offers if anything beyond that. I am not aware of anything. TJ