[headstamp 2]

I went over to W10 from 7 and went back to 7 after I didn’t care for 10. Now, my W7 won’t stay in sleep or hibernation. Any ideas?

[dayglored]

Check your "Power" settings, including the "Advanced" ones that they steer you away from. Chances are that your leap into W10 and then back has left some changes behind.

I doubt that it's a permanent change (i.e. in hardware) so it should be possible to get it going again with the power settings.