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One thing about my MacBook made me think: why does it take so long for the laptop to go to sleep. When I close the lid the laptop goes into the sleep mode but it takes some time before the power light starts pulsating. My wife’s older iBook G4 sleeps immediately after the lid is closed. I want an immediate sleep on my MacBook!

After researching I found out that Apple secretly enabled hibernation on newer laptop models which means the entire memory content is written to disk before the laptop enters the sleep mode. Hibernation is good because in case of power loss the laptop can still wake up from sleep. This, however, happens very rarely to me and I don’t need hibernation. It also uses disk space. I have 4GB of RAM so the same amount will be used on disk.

I found a great utility that helps to disable hibernation: SmartSleep. Better yet, it uses sleep until the battery level drops to a preset value and then enables hibernation. The best of the two worlds. I immediately installed it and it works as designed. It even recovers the space used by the hibernation file – the whole 4GB I can use for something else.