Problem happens to me on 2011 and 2013 maxed out Macbook Air 11"s.
Can be recreated as this: As the comp sleeps/screen goes black in power save -> if you touch mouse pad during this 1-2 second window, the computer cannot be revived without holding power down and rebooting.
I installed the Deep Sleep widget and disabled Deep Sleep on both laptops, and that fixes it 90% of the time.
Awful performance by Apple here.
Can be recreated as this: As the comp sleeps/screen goes black in power save -> if you touch mouse pad during this 1-2 second window, the computer cannot be revived without holding power down and rebooting.
I installed the Deep Sleep widget and disabled Deep Sleep on both laptops, and that fixes it 90% of the time.
Awful performance by Apple here.