Harry Potter Robes

The Hogwarts Uniform is a uniform the students wear at Hogwarts School of Witchcraft and Wizardry. Students must wear their uniforms during all lessons, and while eating meals or studying in the Great Hall. Students are allowed to wear their own clothes after lessons in their House Dormitory. Most students are seen still wearing their uniforms in their House Dormitory, most probably because they would need to change into their pyjamas to sleep before they go to bed, so they may feel that it is troublesome to change into their own clothes, then change again into their pyjamas.