I'm on 10.10.3 if it matters. I've submitted this feedback to Apple 2x already (once with each public beta). I'm just looking for a way to fix this because it's making my 2011 MacBook Air pretty much unusable. When I put my MacBook to sleep and then open it up, it goes to a black screen with the mouse showing but I can't move it. It will stay like that forever if I don't just use the power button to kill the machine and reboot. It also seems to be running warmer than it should during sleep. And then to make the problem worse, when I reboot my computer the Apple logo won't show up and a folder with a question mark shows up. If I reboot 2 or 3 times and use the option key to select my startup disk (this sometimes doesn't work and it only shows the online recovery option) it will eventually boot correctly. How I can fix this? I've already reset the pvram and repaired permissions. There were a lot of permissions that needed to be fixed, but it didn't fix the sleep problem.