I've been debating that. Technically he could wake up after an hour (when he's had a chance to heal some Stun damage) but given the late hour and the trauma to his system (Physical drain damage) I'm inclined to have him sleep all night. Everyone else will be on watch and/or sleeping in the meantime. Ohanzee has first watch (say to 1am) while Katsina has second watch (to 7am). Sunrise is a few minutes after 7am.
I'll post ICly soon that advances us to daybreak, where Bear will have some thoughts for Sam before departing with the sunrise. Stun damage will be healed, but Sam will need another 12 hours or so before he can start unloading his boxes of Physical damage. Katsina's Mana Bind spell will be gone, since she can't sustain it while sleeping, so Sam will be free to go on a rampage at his earliest convenience.