I'm of the school of thought that we have at 2 minds, my guess is this drug inhibits our egoic executive mind and our unconscious mind takes over.

I've been witness two sleepwalking events with different peopl. Both were fully conversant and aware of their surroundings, they just did odd things and we assumed they were drunk. Later we found out about the ambien and how neither had any recollection of the event.

It’s often a question of how much.

Do we have free will when sleeping? No. There goes a large part of our life.

How about when zoned out? No.

Do we ever have free will? Atheists looking at the scientific evidence argue that we never have free will.