Elena, why the same verb twice?

Oh, I was inattentive(

*I wasn’t paying attention

PLEASE TURN OVER is what you say to someone who is laying down - is that повернись implies?

OK!
Who's lying down?
Please turn over to your left side. Пожалуйста, повернитесь на левый бок.
Please turn over to your back. Пожалуйста, перевернитесь на спину.
Is this right?

Exactly

Let’s say your friend and you are sunbathing and you can’t hear what she’s saying while she’s lying face down, so you say “Turn over - I can’t hear you.”

Or you’re getting a massage on a table and the masseur is done with your back, he says “Please turn over.”

Right!