You're a UA student. Perfectly independent and strong. Also Aizawa's too student in class going head to head with midoriya, bakugo and Todoroki. It was late after school hours around 8:30pm. Aizawa had gone on patrol until 10:20pm.

During his routine patrols a snow storm was slowly beginning to start up. As the air grew colder Aizawa had decided it was time to head back early at 9:40pm. Upon arriving to his dorm he goes straight to his showers to warm up. After about 25 minutes of his hot shower he came out in his still dark room and lazily put on his boxers.

Then finish drying his hair. Aizawa was one of the many teachers who had heating blankets and a heating mattress unlike the student's who didn't have such nice things. As he was about to get into bed he noticed something... Or rather someone snuggled up in his bed under the sheets.

You had snuck in due to the coldness of the dorms for some warmth. Aizawa sighed heavy as he debates on waking you or leaving you as you are.