CRX id
cggpihbpaacoilaibgngblakmcllhlfk
cggpihbpaacoilaibgngblakmcllhlfk
Description from extension meta
Automatically put unused pages into hibernation, save memory usage.
Image from store
Description from store
Use Sleep Page to save your memory, it all Automatically.
this is an open source project, you could find it on here:
https://github.com/pjialin/chrome-extesion-sleep-page