The 1.0 version of Sleep-Wake Logger for Mac is provided as a free download on our website. This Mac download was checked by our antivirus and was rated as virus free. This free Mac app was originally designed by My Web Kft. The software is included in System Tools.
From the developer:
Sleep-Wake Logger records the time when your computer enters sleep and the time when it wakes up. It keeps a log of all such events and the sleep/wake state your computer is in. You can choose to display the data as a pie chart or as a spreadsheet. Rolling the mouse cursor over the slices of the pie chart the start and end time of the slice are displayed along with the duration in minutes.
You may want to check out more software for Mac, such as Network Logger, Network Logger Pro or TimeMachine Error Logger, which might be related to Sleep-Wake Logger.