New answers tagged memory-leak
The purpose of the sleepimage is to store the contents of RAM if your Macbook's battery is low and is about to turn off completely (what Apple call "hibernate"). As such it can be equal in size to the amount of RAM in your Mac. So on your Macbook with 16GB of RAM it could be 16GB in size, which would go a long way to explaining how your Mac with 20GB of free ...
I just turned off the family sharing and iCloud and gained back 3 GB of space.
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