Recently my Macbook Pro has been having an issue. I turn it off for the night and go to sleep. Upon waking up and turning it on it won't boot at all. I get a black screen and I hear fans starting to spin and then they completely stop. Also the sleep light keeps blinking one time. It keeps repeating this process until I do the Shift+Alt+Command+Power Button thing (I believe resetting SMC). I'm currently booted into safe mode and have repaired my disk and it says everything is okay. This usually only happens when I leave it off. I'm just coming here to see if anyone with experience might be able to diagnose this or help me further. I appreciate any advice, thank you.