It is damn hot already does it need to be closed more? Not my idea
Use this software: SMCFanControl Apple's default setting for the MacBook and MacBook pro are dangerously low IMHO. Again though does it cover the base of the laptop? If so people should stay away from this product at all costs. Apple designs the system to channel heat away from the core components through the base of the device. Its how it was designed. Covering that up would be "bad". And if you folks are fuzzy on the whole good bad thing try to imagine all life as you know it stopping instantaneously and every molecule in your body exploding at the speed of light. That's bad.