Have you ever tried to sleep during a white night? Don't even try it.
Wake up and dive into its weightlessness, when Saint Petersburg floats somewhere between the sky and its horizon at a time when objects lose their volume and passerby people faces become lilac-milky color so that it seems that they breathe as twice as less often.
Childs of the north has this silver glow in their retina. Their eyes hurt from high saturation.