Hello there, I recently experienced this issue. Specifically whenever I logged back into my laptop after it was in Sleep, my desktop would "restart" and I had to reauthenticate my Google accounts. This would happen every day for some 2-3 weeks before I turned off a security setting I toggled 2-3 weeks prior. Here's what I did to fix my sleep issue + Google re-authentication issues:
System Preferences > "Click the lock to make changes." > Advanced (bottom right) > Untick the box for "Log out after __ minutes of inactivity"
I originally enabled this in case I stepped away from my laptop while at school or work. I didn't realize that my Google accounts and my session would be entirely logged out even during Sleep mode. I haven't had this problem since disabling the feature.
Hope this helps!
