title_body: Can the sleep timeout be adjusted on Kindle devices? The seemingly fixed screen timeout on all my Kindle devices has never been an issue for normal reading. If it goes off on me it is usually because I fell asleep myself, so one cannot blame a device for following suit. However I have also been using my device for some venues in lieu of printed speaking notes. I email the outline of my talk to my device and it makes for very convenient review and works for most venues to speak from. Usually I move through notes fast enough for the timeout not to be a problem, but occasionally I'll be long winded on an issue and come back looking for my next cue to find the Kindle has gone to sleep. Getting it back doesn't take that long but it is awkward in some venues, esp if you forgot where you were going. Was I going to ask something here? Oh ya...
  
  Is there any way to extend the screen timeout on recent Kindle devices. Even if it involved some level of hackery, that might me acceptable.
upvoted_answer: From the tags on this questions, I'll guess that you're talking about a Kindle Paperwhite. I know it's possible to do this on a Kindle Fire as well; it's in Settings > More > Display > Screen Timeout there (screenshots here).
  
  On the paperwhite, and apparently many of the other Touch devices, there are commands that you can input in the search bar to do all kinds of interesting things. Entering ~ds will cause the screensaver to never show. A full list of commands is available at http://wiki.mobileread.com/wiki/Kindle_Touch_Hacking#Search_Bar_Shortcuts
  
  EDIT: According to this forum post (same thread you linked in the comment, actually), it sounds like restarting the device is required to get the screensaver working again; the ~ds switch is apparently not a toggle. As far as power consumption goes, eInk only uses power to change the image, not to display it. This means that removing the screensaver may in fact extend the battery life, rather than draining it more quickly.