So whenever I put my mac book air to sleep for a long period of time it shuts down completely and has to be plugged into a charger for 5 minutes before it reboots. The light doesn't even show up on the charger at first, and it is always full charged when I put it to sleep, so I don't think it's running out of charge while asleep. Secondly, while playing a quite demanding steam game, my mac book just shut off, all the power gone and isn't turning on after pressing the power button repeatedly. The mac was heating up a fair amount and was plugged in at 100%. I need a fix to this, I use it for all my schoolwork.