How many of them are there? How is their health? Who are they?
There are 587 humans currently in the Relaxation Vaults, all in perfect health. They seem to be a mix of ex-employees and their immediate family.
And what would be the process to wake up and rehabilitate them?
They are periodically awoken to go through the Aperture Science Rehabilitation Procedure so their muscles and nervous systems don't rot, and supposedly occasionally the central coordinator sends them through test chambers, but apparently that has not actually ever been done, with exactly one exception.
Exceptions are interesting. What information is available about that exception?
And yet, somehow, she was put at the top of the list of test subjects, the first to be awoken.
And here are the video recordings of her tests, to the very last chamber.
And she's in a Relaxation Vault.
Does the information in the files indicate she has any friends or acquaintances, or parents, also available?
Parents: information unavailable. It doesn't say that they're dead or missing—there certainly are orphans and adopted people and things like that in other files—just that the information isn't there for Teytis to access. She doesn't seem to have any other connections. As in, the file actually says she doesn't have other connections, not that the information's missing.
Anyone else looking like a good candidate? Maybe someone technically inclined who probably wasn't on board with the final madness?
No one else is marked as 'DO NOT TEST' while still in the testing line, and the various other candidates have various other values in their variously arbitrary measurements and details.
What would be the standard procedure for waking someone up and introducing them to
Well, they're woken up periodically for Aperture Science Mandated Intellectual And Physical Rehabilitation to make sure they won't atrophy, but there's the virtual equivalent of a huge button with lots of arrows and clear instructions on how to press it to start testing which moves the Relaxation Vault into the starting chamber of the Aperture Science Testing Track and wakes the test subject.
Send some of herself down to attend each Vault to make sure she can immediately intervene in any mistreatment.
Select Ms. DO NOT TEST and 2 other random people —
(She'll be checking this electronically as well, of course.)
(This particular extension doesn't suggest she's human, and could be mistaken for a typical Aperture robot if it had a bit more in the way of exposed workings; it's a floating sphere with a camera and some other less-obviously-purposed ports.)
Wheatley's eye widens. "Oh! Yes, ma'am. Everything going fine, here. Nothing wrong at all. I'm glad to see you're safe and whole and very much not dead."
(She has reviewed some of the testing videos.)
As the vaults come into view, she splits into three (with a bit of gratuitous movement and opening panels, to discourage suspicion about not being a normal robot, just in case) and heads to all of the selected vaults.
He follows one of her to the vault. "Of course, of course, happy to hear it. The, um, the humans are fine."
The vaults are, in fact, shaped like motel rooms. By whatever mechanism, the humans are on the bed, looking quite... relaxed. Probably in suspension.
Whatever mechanism. Are there any suspicious, possibly antisocial, mechanisms around the vault? Particularly rude alarm clocks? Just checking.
Nope! Nothing antisocial.
"And they're so, so healthy. Really, you don't even need to check on them, I've been doing quite a good job, if I may say so myself. Splendid."
Virtual button: pushed.
The test subject awakening process begins. The first step involves moving the vaults to the respective test tracks (there can be many tracks active at any one time, apparently) so the test subjects won't lose any time.
"Oh! Of course, of course. Yes, they'll be very good test subjects, yep, the very best."
She also removes the rail segment that would allow Wheatley to follow as well.
“Sorry about that, but this is going to be a — very special test and I need to avoid any — confounding factors.”