Alright then! All you'd have to do tonight is just try and go to sleep. (Unless you want to attempt the more guranteed way to get there.)

Description: Apparently, there's a whole room in Yume 2kki where Urotsuki wears the outfits of a bunch of other Yume Nikki fangame characters like Sabitsuki. Take that information as you will :) -Sal