It's fine for him to sleep! If Shavri had been more on top of things, she would have thought to explicitly tell him that she doesn't expect to need him for at least ninety minutes.
She spends that time checking and re-checking everyone with Sight, making notes, conferring with the other Healers. Gauging the rate of deterioration.
...There are no lethal-without-Blai's-magic injuries among the other evacuees from the north, at least not that anyone can tell Shavri about in the next ninety minutes; most likely, Shavri thinks, it was only the people who weren't too badly injured who got out at all, anyone who was unconscious when the evacuation was in progress was just...left behind. Also it seems like the mysterious life-force-leaking effect was narrowly targeted and pretty much just hit Leareth's base. Everywhere else was just earthquakes and fire.
There...are probably a lot of critically injured people along the Iftel border but the current state of their communications with anyone who can speak on behalf of Iftel is not great, and right now Shavri doesn't have the energy to weigh that as a consideration. Someone else's problem. She has too many problems just in this room.
She can't wait all day for what's left of Leareth's organization to get itself organized, either. Her patients are all leaking life-force continuously and if anything it seems to accelerate as they get weaker and weaker. Blai and Seldan have at least until tonight, she thinks, though neither would make it until dawn without further intervention. Nayoki might have until tonight, the Lesser Restoration apparently did a lot - well, did something - for her body's ability to absorb and benefit from Healing-energy. No one else does. Stef is in the worst shape - he's not very strong to begin with - and she's not sure he has another hour.
She cuts it pretty close. Buys long enough for Dara to coordinate with Leareth's people, which is apparently an entire project, and get them all on the same page that Haven is no longer especially dangerous for them and has the advantage of containing intact buildings, and arrange to transport a bunch of their injured here. No one is imminently dying, but there are plenty of people who aren't going to make it without Healing attention, and people who will recover eventually but are incapacitated now and may be able to do something helpful once back on their feet. Option value. Shavri has no idea what comes next but it's almost always more helpful than not to have more people functional and more Healers freed up for other things.
They can cram twentyish people into the room, around the beds and folding cots and the pile of straw for Seldan. (There are bits of straw in her hair now, somehow.) She has someone bring Stef within touching distance of Blai, before they make it impossible to move by filling the room with injured people.
And then she prods Blai awake.
:Need a Lesser Restoration on Stef.: He's barely holding life-force at all now and she suspects that if they don't address that the channel won't even help that much. :Then channel, we've got as many people in range as we can manage.: