Can't switch to full screen apps or evoke Mission Control after sleep
I get the same symptoms/failure.  The following Terminal command fixes it for me:

killall Dock

But before you do that, run killall -s Dock to make sure it's only going to directly kill the one "Dock" process. Dock will restart and then mission control is working again - for me anyway. You can verify that the restart happened by looking at the process ID of "Dock" after the restart. Hope this helps!