No, I apparently have normal sleep architecture, but that
"often-claimed, but rarely seen" true shift of my intrinsic
diurnal clock.  I am out from the rest of the world by about
six hours or so, and even if I travel six hours east, it makes
no difference, I will adjust, just like anyone else with jet lag,
to the shifted schedule.

It made some things very easy for me....my alarm system for
waking up in the middle of the night is very sensitive, so
I never ever had to fear that I wouldn't hear the baby in the
night if she woke up....I would hear her even if she rolled
over!  She could sleep with me in the bed and there was
*never* any risk that I might roll on her in oblivion, because
I was always aware of her.  Or even with the cats.  I always
know where they are on the bed, and I always look up in the
night when they get up and move around...just to see they
are alright.  And, of course, when on call, I *never* slept
through a pager, or phone call.  Well, maybe I spoke
to them in my sleep, who knows!!, but I always got up
and answered, at least!

There's no name that I have seen so far, for this
weird "awareness".  Despite the chronic awareness,
however, if I am not disturbed, I can still get a quality
sleep, even though I am always semi-aware.  So if I pay
strict attention to sleep hygiene and am hardcore
about trying to get to bed, if not sleep, I can get
by.  Rock the boat, and it can take weeks for me
to get straightened out again, though.

When I had my first sleep studies done, the neurologist
told me I should pick a different career, as it would
wreak havoc with my already disturbed sleep cycles,
but try telling that to someone after ten years of
post graduate specialization!!  Bit late telling me
now! was my response, more or less.

--tension

When I was married about one month, my husband caught a cold .  He must
have had a fever because in the middle of the night he got up went through
the house saying "turn on the juice, turn on the juice" and at the same
time turned on all the lights.  Then he went back to bed.

When my son was a teenager, he did the very same thing.  I suppose he
remembered the story I had told him about his father.

Neither one remembered the incident in the morning.  MLB