If you're asking how to re-create the bug, prior to 10.9 DP8, if you closed the lid with the computer on overnight it wouldn't wake up. You'd have to depress the power button and reboot the computer. This *seems* to be fixed in Mavericks DP8, but long term user testing is still out... The problem was first reported under Mountain Lion 10.8.5 and got carried over to 10.9 thru DP7 for some. I'm hoping, it's resolved now! The only known resolution is to update to 10.9 DP8 If that wasn't your question, please clarify.