Is Deep Sleep a Deduction or an Experience?

Deep sleep is clearly not an experience, that kind of experience we have in the waking or the dreaming. That uniform blankness, that's also an experience, quote unquote. Is the mind not active? How can we actually know that we are experiencing it that state? Aside from deducing it once, the mind is back from life Yes. If it was not an experience,. then we would only talk about waking and dreaming. We wouldn't even talk about deep sleep, anesthesia, coma. It's a blank, nothing. I knew nothing. That's also experience. Not that it's a done deal. There are like, naiyaikas, there are schools of philosophy