"I'm not here to stay, I just came by for Miriel's appointment. I might sleep in my house, I'm not a hundred percent sure I won't run out of mana and fall into the sea if I fly all the way back."
"I couldn't get the duration long enough if it was one-time expenditure and I didn't want to have to re-cast on the way. And you too."
"Oh yeah, much. The mind shield spell to ward off the time slidey thing is really complicated so I'm not seeing major returns on that right away, but when I pick something more conventionally doable as an interim project I'm blazing through it. Fëanáro, if I teach you to fly are you going to try to fly to the island?"
"...okay, good, because I'm not sure you have the mana for the whole trip and it would upset your parents."
"I've been practicing longer and sleep more often so I can practice more frequently too."
"Oh, if I'd known you wanted to fall asleep I could just do that for you, when I was around more, I thought you just liked being awake way too much!"
"Well, when I'm back full time we can invent a spell for it or I can just put you under by arts."
"Five minutes won't do it but like three or four hours will probably get you to at least half capacity."
"I know. It's really annoying. Did you get anywhere on lucid dreaming?"
"...well, if you think it's because you don't fall asleep until you're super tired, that would definitely be the simplest thing to try changing."