We've all been there: that moment when you wake up in the morning to find a little bit of gunk in your eyes. This is totally common, but what exactly causes it? It's all down to those tiny {tears{, or more specifically, https://cormaceldg545936.wikienlightenment.com/8506830/that_gooey_stuff_in_your_eyes_eye_crust_what_s_going_on