JLNobdy
I think samadhi is a temporary recognition of turiya.
To recap: re: sleep
We never observe whole objects but only what appears as parts of objects from a specific perspective, and we imagine the rest, that the whole object, e.g. an apple is there, even though it isn't (our nondual perspective). Same goes for the body. And if we take into account that whatever is observed is dependent on ?'observation' to be whatever it appears to be., then a whole body is never there,
or here.
There's no thing-in-itself includes parts-in-themselves.
We say ?'body sensations' but I think that's a misnomer as well as misleading for there isn't a body there to have sensations
of. There are what we call sensations that are interpreted as a body, ever changing and repeating etc.
So there's no body to do any sleeping, nor of course no ego -self. There is the observation of certain sensations that are interpreted as falling asleep that stop occurring. And then there are certain sensations which appear that are observed and understood as waking up. But our interpretations are wrong, that is, they are interpretations that buy into samsara; take it to be real, naïve realism.
Ergo, there is no walking or running etc. for the same reason as above. There is only sensations that are understood as running or walking. etc. And of course there is no
where to run to,

It's like being on a tread mill, the ground passes by, the buildings and clouds pass by etc., but there's no one going no where.
Sages often say, "You are not your body"
.of course not, What body?
Though some such as Ramana say, "I have no body"
.