Do you shower in the morning? Even if you did the previous night? It sort of bugs me how people do this as there aren't many legit reasons for many people to shower in the morning. The main douchebags are those who shower morning and night. People take showers to be clean but how do you actually get dirty from sleeping? Do you run a marathon on your bed while you are asleep?
If you did not shower the previous night, (assuming you do this often) how can you even sleep feeling dirty. On top of that, your sheets will stink in just a few days. Oh sure it is a great way to wake up but so is a splash of cold water on your face. Saves a few tens of litres of water for nothing. And yes this is random.