Downloading Sleep Eject 3.0 for Mac from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this app available.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The software belongs to System Tools. The actual developer of this software for Mac is Chris Vallis.
From the developer:
Just close the lid on your MacBook and go!
Automatically and safely unmount all safe to eject disks before the system goes to sleep and optionally when a user logs out or switches account.
Features:
-Prevent annoying errors.
-Show or hide status bar icon.
-Global Hot Key to quickly unmount all removable disks.
-Automatically remount disks when connected.
You may want to check out more software for Mac, such as Quick Eject: Quickly eject your external drives, multiple Eject or Quick Disk: Quickly eject and unmount your external hard drives, which might be similar to Sleep Eject.
Automation
Device Assistants