User blog comment:Weavillain/FANFICTION: Pranks n' Beans/@comment-31802240-20170703200528/@comment-31022739-20170703202159

Why do you feel the need to be a party pooper? Luan already has that position covered. ;)

Joking aside, traditionally, laxatives last less than a day. It wouldn't make sense for an active stimulant like that to persist over twenty-four hours, thereby getting in the way of sleep. I don't think it breaks one's suspension of disbelief to assume that the same applies here.