title: When does android device go to sleep mode?
body: <p>I was searching SO and web but i couldn't find sufficient answer for my particular question. Ok here we go:</p>
  
  <p>Every user can modify screen timeout on android. (when screen turns off when its idle for __ seconds/minutes - users choice ). But user can modify ONLY screen timeout and not when device goes actually to sleep. I found here what happens when device goes to sleep: (Really nice answer by CommonsWare) <a href="https://stackoverflow.com/questions/5120185/android-sleep-standby-mode">Android Sleep/Standby Mode</a></p>
  
  <p>Ok my question is simple. How do i know when my phone will go to sleep? Will it go to sleep immediately after turning screen off? Will it stay "awake" a while after screen was turned off? And most important: Does sleep mode in particular device varies from brand device ( how manufacturer implement this ) or it depends on ROM version (For instance, all ICS powered devices will go to sleep X seconds after screen was turned off )?</p>