MacBook – Is it ok that a MacBook turns on from sleep with the lid closed when MagSafe is connected/disconnected

lidmacbook promagsafesleep-wake

I have a mid-2012 MacBook (non-retina). Recently I've noticed that after closing the lid to put it to sleep, once it's sleeping if I pull or attach the MagSafe connector to it it will turn on from sleep, with the lid still closed, and go back to sleep after around 30 seconds.

Is this behavior normal? Should I be worried? Is there a way to disable it?

Best Answer

It is normal and if it's only for 30 seconds then there should be no reason to worry. The only thing that really happens when it's closed is that it gets really hot.