"Not always, but it is best not to neglect it for too long. We try to get at least a full night per week; I slept a few hours yesterday, and need not do so for a few more days."
"I need to sleep every night. But if I don't need to match your schedule because you don't have one, I might as well try doing metaravelry to local magic whenever it would be convenient for me to spend the next few hours sleeping it off."
"It would not be an imposition to carry you with us while you slept," Syl notes. "We could place you in a dimensional pocket and remove you once you regained consciousness. Or simply leave you in and provide you with food and books, if you would rather. Thus, we can help you test your magic at any time that would be convenient."
"Can people normally leave those pockets on their own?"
"No. They're meant for prisoner transport. I suggest it because it makes little practical difference to your situation whether you can't voluntarily leave the dimensional pocket because you can't manipulate the Elsewhere, or if you simply can't get more than fifty feet away from either of us because you'd start growing extra limbs." She pauses. "That may have been insensitive of me. I apologize."
"No, I thoroughly understand that this is what I'm looking at if I wander off, saying it doesn't make it worse. I didn't have a specific experiment in mind for experimenting with metaravelry, so now I'm curious if I could get out of a dimensional pocket on my own. If I can do it at all it'll take me less than a minute, but I might pass out in so doing."
(Shifting topics to magic science seems to have made Syl markedly less mechanical and weird. Hooray?)
"Yes please. But just for a few minutes, if I can't do anything I won't be tired enough to sleep right then."