Δαφνη Ευτυχια Αρθουρος

I recall hearing on the radio several years ago that there's something like a fifteen-minute threshold for staying asleep or retroactively having woken up ... that if the Q&A or routine task lasts less than that, there's a very good chance that you won't remember it and in any sense that counts you will have done the entire thing in your sleep, but if it lasts longer than that, it'll be as if you'd been awake from the start of it.

I'm not sure whether this is related to the ability to drive up to twenty minutes while asleep (aparently the transitions from wake to sleep and from sleep to wake while driving are considerably more dangerous than the twenty-minute driving-while-asleep span -- I'm not sure what happens after twenty minutes)

Human sleep is a very odd phenomenon. Or set of phenomena.

(Hmm. Thinking about the driving-while-asleep thing, I recall in my younger and less-willing-to-pull-over-for-a -nap days, I found it disconcerting to wake up on a different highway than the last one I remembered driving on. Apparently I managed to negotiate a familiar exit ramp in my sleep. A couple of those experiences, and I got scared enough to put a blanket in the car and start trying to figure out when I needed to stop and rest.)