Macbook Pro Retina 2014 - Quick return from Sleep - Black screen with cursor before login window
It turns out in this case the cause is Spotify. It seems to be a bug with the Spotify app. Yet no bug fix has been released. If you have spotify running, kill it and see if you get this issue still. 

If you dont use Spotify go through a process of elimination. Start by killing everything running (processes/background/tray tasks) then make the laptop it sleeps and comes back.

Then start processes/background/tray tasks up one by one and let the computer sleep (change it to 1 minute or something to test) then see if it comes back ok. Keep going until it doesn't thats the process at fault.