Refuses to SLEEP automatically.
Difficult to SLEEP manually.
When I do get it to SLEEP, free zes when awakened.

Maybe is about time to get an anti-virus!

And what if I already have anti-vitus installed ?

If you already have an anti-virus installed, then you need to follow up what caused this to happen!

Was this problem always there?

The automatic started early August,while the manual about 2 weeks ago.