It can a bit annoying sometimes when you wake up in the morning with crusty eyes. If you’ve had an especially gooey or teary night, it can actually seal your eyes completely shut. However, rubbing it out of your eyes is as satisfying as opening a new jam jar and hearing the lid pop. It’s an important part of your daily routine. Also, my mum called it ‘sleepy dust’, which adds a certain quaint magic quality to this particular mucousy discharge.