(MacBook Pro 13" 2020 w/ macOS 10.15.5)
I've always set hibernatemode to 25 for all my old Mac's (running OS 10.10.5) without a problem. However, setting hibernatemode to 25 on Catalina didn't seem to work, even when I turned off the Standby feature as suggested in this link: macOS Mojave hibernatemode 25 | Dark Wake/ sleep wake . Whenever I open the lid, I see the login screen immediately; apparently it did not wake from a hibernation state. I checked the "Wake from" Console history and it showed several "Wake from Deep Idle" events; none of them was "Wake from Hibernate".
Is it possible to make Catalina hibernate?