Maybe mine is all good because I never have all the so-called prog/data saving stuff on.
Plain old fashioned sleep, with no fancy stuff, is the go here at chez linw!
Looks like I resolved the issue. At least for now. Sleep works if I put it to sleep from start.
Run "powercfg /energy" command from admin command and save file energy report to desktop, so browser can read it..
Found that there were some errors with USB devices.
Install nirsoft USBdeview to check which are those USB devices (vendor ID would tell). In my case it turned out it was USB receiver for my Logitech mouse and mouse itself.
Go to device manager and uninstall USB input device. After restart PC goes to sleep. Windows will reinstall that device, don't worry.