I have a 8 eight year old female that will do an odd behavior when she is sleeping or if I bump her while she's sleeping.
She starts waving her head all around eyes open and totally confused and won't respond to me even if she gets on her feet and is still waving her head back and forth and then she will finally pop out of it and be wide awake and normal.

My sister says she's in a deep sleep but t has me concerned.

Should I be worried?

She actually sounds like me. I would not worry. And I have had dogs with seizures.