Prevent sleep on any MacBook running OSX Lion


On MacBooks, it is default (and unchangeable) behavior for the laptop to Sleep when the lid is closed.  This is because of the way Apple has engineered the MacBook line’s cooling and ventilation system.  They are simply not meant to run with the lid closed.  Doing so risks damaging your LCD and other internal components.  That said, use this utility at your own risk.  I know I am.  :)

Since InsomniaX and Caffeine weren’t working for me to prevent Sleep when I closed the lid on my 2011 Air, I tried InsomniaT – and it works.