I don't think this is a great plan. First, there's probably some sort of public drinking of the SN involved. Not good.
Second, here's how my imagination has it play out... You drink it, then you have to hang around until you get drowsy enough or pass out. More chance for interference.
Then either the jump kills you, making the SN a waste of time, or you survive the jump and you're in a world of pain... That plus adrenaline could stop you from passing out at the proper time, which means then you're doomed to feel whatever comes next.1 It might take all the peacefulness out of the method.
I think one or the other is best. If you have SN anyway, why even jump?