How to tell a friend you don't want to room with them
I have one really good friend right now in my freshman year of college. We're both engineering majors and get along great; we do fun activities as well as homework together. He asked me to room with him next year, and not knowing how to refuse, I said yes.
Problem is, I go to bed early (before 11 p.m.) and get up early (before 7 a.m.) every day. He goes to bed after 2 a.m. and gets up after 9 a.m. How hard would it be to live with someone in a 10 x 12 box who is asleep for 3 hours of the day that you're awake and vise versa?
I have another friend who seems to have habits more similar to mine who has suggested that he wants to be roommates.
Basically, I don't know what to say to my good friend who I've experienced the freshman first semester with. I want to continue being good friends, but I think rooming with him would add too much tension. How can I say no to him when I've already said yes?
(I realize this is a petty question, and I apologize for that.)