Hello! I've just discovered that macbook airs have this amazing feature that saves lots of battery when in sleep mode. However I've noticed that mine doesn't perform as it should. I charged the battery to 100% and closed the lid. Next morning the battery had dropped to 88%. The standby feature tells that, when in sleep mode, after one hour, macbook air will go into standby mode and then its battery will last 30 days. I've run the command "pmset -g" and here's the following: Active Profiles: Battery Power -1* AC Power -1 Currently in use: standbydelay 0 standby 0 halfdim 1 panicrestart 157680000 hibernatefile /var/vm/sleepimage disksleep 5 sleep 10 hibernatemode 3 ttyskeepawake 1 displaysleep 5 acwake 0 lidwake 1 I see that the "standby" is 0. Shouldn't it be another number? Please, any tip is great! Thanks!