In my experience this is one of the things Apple still has yet to perfect. I frequently have a problem of my mid-2012 MBP not wanting to wake up when I open the lid no matter how many times I close/open it. Often I have to do a hard reboot.
To Apple's credit, this is also still a problem with PC laptops from what I hear.
To Apple's credit, this is also still a problem with PC laptops from what I hear.