SleepyTimer 1.0.4 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The program lies within Productivity Tools, more precisely Timekeeping. The actual developer of this software for Mac is Alan Slattery. We recommend checking the downloaded files with any free antivirus.
From the developer:
SleepyTimer is a simple, uncluttered menu bar application that allows you to set a timer and have your Mac go to Sleep, Shutdown, Restart or Log out when the timer runs out.
Useful if you are doing a long download or listening to music and want your Mac to not stay on for the whole night.
You can choose to have a window sit in the background of your screen with the countdown on it to remind you.
You may want to check out more Mac applications, such as Sleepytime, which might be similar to SleepyTimer.